Visual Novel / Erect!

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Erect! (えれくと！) is an H-Game visual novel developed by Astronauts Spica with character design by Piromizu and released in 2012.

Kento Ogiwara is spending his days helping out in his father's flower shop. He knows two girls from the secluded Lilysthia International School: the regular customer Riel and a girl he greets at the window every day. One day, just after Kento delivered a flower arrangement to the hospital, he is assaulted by that girl from Lilysthtia and she seemed to display a demonic form. When he comes to his senses, Riel explains that she and the other girl, named Luna, are actually succubi, that the latter stole large amounts of life force from him and that it's a miracle he survived that. Kento makes the decision to enroll in Lilysthia to help out Luna, starting a life surrounded by succubi.

Erect! contains examples of:

• Abhorrent Admirer: Eris Erotis always attempts to approach Kento with extremely sleazy jokes and pick-up lines. She ignores his refusal and interprets it as some sort of verbal abuse play. From time to time, Kento remembers Eris as the biggest pain in the ass in his life at Lilysthia.
• Accidental Celebrity: Kento's first encounter with the princess Luna is a sudden assault by her, and him curing her lack of life force through sex is an emergency measure urged on by Riel. After those incidents, he feels all the stares and attention from all succubi of Lilysthia because he has become known as the human who saved Luna.
• A-Cup Angst: Downplayed with Noelia, who doesn't have a small chest, but envies her sister's larger assets because she thinks Riel gets more attention with them.
• All-Ghouls School: In Lilysthia International School, students, faculty members, and janitors are all Succubi and Incubi. The only exception is the protagonist Kento who transfers there.
• Alliterative Name: Eris Erotis.
• All Women Are Lustful: Given that almost all females are succubi, it's natural that they are all curious and knowledgeable about sex. Even Riel and Luna, who don't express it, are interested in Kento deep inside.
• Amazingly Embarrassing Parents: During the epilogue of Tia's route, Tia and Kento graduate and go visit the former's parents. The parents center the conversation on the couple having children, specifically suggesting they prepare some concubines for Kento while Tia is pregnant. This makes her feel a bit jealous and embarrassed.
• And Call Him "George": When Riel's parents meet Kento, the father, who gives off the impression of a gorilla, gives an overenthusiastic and strong hug to Kento that feels like a bear hug. So much so that Kento fears he's going to get his spine broken and die. Thankfully, the mother interrupts it by forcefully pushing the father away.
• And Now for Someone Completely Different: There are some brief sections in which the point of view is given to one of the girls instead of Kento. These are heralded by a screen reading "ANOTHER VIEW". The first example is after the scene of Kento greeting Luna from outside the window, with Luna's POV inside her room explaining her illness.
• Babies Ever After: The Stinger for Euphy's route shows that Kento and Euphy have spent a few years as happy spouses, with the former still working at his father's flower shop and the latter having become the head nurse of Trinity Hospital. They are expecting a baby.
• Balcony Wooing Scene: In the prologue, Kento has taken up a daily routine of checking out the window of a residence inside the grounds of Lilysthia and waving to the girl up there, with her greeting back. From that far a distance, they are unable to get any words across. He doesn't know that the girl, Luna, is a succubus who has a platonic crush on him and that she can't get outside due to her sickness and identity.
• The Beautiful Elite: Outsiders regard Lilysthia International School as a secluded, prestigious academy housing lots of top-notch gorgeous girls. The four main heroines that Kento meets inside are ojous descending from rich families and considered to be Head-Turning Beauties.
• Bigger Is Better in Bed: In one of Euphy's H-Scenes, she casts a spell on Kento's limp penis to turn it ridiculously huge. It has to shrink a little before he can put it in, but he makes her feel better than in previous scenes.
• Book Dumb: Riel is competent in friendliness, swimming, cooking and maid duties, yet has the worst grades in her class and is envious of the others' A's.
• Bookworm: Luna was bedridden until very recently. One of the very few things she was able to do was reading books. She liked self-inserting as the protagonists of adventure stories because she couldn't get outside.
• Breaking and Bloodsucking: During her period of high activity, Euphy can't hold her thirst for life force anymore. She flies to his house, magically unlocks his window, breaks in his room, straddles over him, and finally bangs him.
• Bridal Carry:
  • Kento carries Riel in his arms to the infirmary because she has just suffered a Power-Strain Blackout.
  • Gender-Inverted in Riel's route. Riel and Kento are Late for School because the former got Overcome with Desire. She decides to put Kento in a shameful situation as she shifts to feather form, carries him in her arms and gets him all the way to the classroom, including jumping over the walls of Lilysthia.
• Bromantic Foil: Kento's friend Kyouta is boisterous and very obsessed with getting women and looking handsome, but he's never successful. Meanwhile, Kento initially doesn't care much about girls because he's busy with work at the shop, but he ends up attracting the attention of some succubi.
• Buxom Beauty Standard:
  • The character profiles in the official website have a specific field for breasts. Riel's are described as "round, well-shaped tits" and Euphy's are told to be able to envelop anything.
  • In the swimming pool, Riel gets too close to Kento and he accidentally takes a look to her cleavage. Amidst this embarassing moment, Noelia and other girls argue that a woman shouldn't be just valued for her breast size, but the other boys think that Kento's reaction to Riel's big boobs is natural.
  • Euphy has the biggest chest size among the heroines. During the Measuring Day, she walks in the room causing even Eris to get envious of her breasts, which are described as "destructive weapons" in the narration.
  • Luna notices that Kento sometimes looks at Riel and Euphy's chests. In her bit of jealousy, she decides to use magic to grow hers to a size far bigger than Euphy's.
• Caring Gardener: Kento is conscientious with his florist job and produces flower arrangements with the priority of making people smile. He gives the same level of care to the flowers he cultivates in the gardening clubs, with others remarking that the plants are full of life.
• "Cavemen vs. Astronauts" Debate: In the gardening club, the boys, including Kento's friend Kyouta, and the girls fiercerly argue about whether flower beds should be used for vegetables or ornamental flowers. They don't seem to reach a conclusion any time soon.
• Chainmail Bikini: The feather form of the fighting-focused Riel gives her more protection on her legs and arms than everywhere else. The only things she wears on her torso are amor plates one her breasts and crotch that are only held in place by magic.
• Charm Person: Succubi can stare at humas to induce a state in which the latter can get their bodies paralyzed and controlled.
  • During the incident in which Luna went berserk, Kento looks at her demon form in the eyes and he's unable to move his body.
  • Tiana gets curious about trying Kento's life force, so she uses the powers on Kento, making his body move on its own to the sex acts room.
  • When Kyouta insists Euphy to help her carry a box, she touches his forehead and tells him to wait. He barks and is unable to move for a few seconds.
• Cherry Blossoms: Kento goes with the succubi to see the blossoming of a large cherry tree and have a picnic, with Kyouta tagging along. The place has sentimental significance for Kento because his Missing Mom used to visit it every year and because his father only tells him about her when they go near the tree.
• Clingy Jealous Girl: Luna does not take it well when Kento is thinking about other girls. When he comments that it would be nice to have a Meido like Riel, Luna stays with Tranquil Fury for the rest of the afternoon.
• Cluster *Bleep*-Bomb: While Luna is graphically describing her first time with Kento in front of everyone, one of her sentences is filled with bleeps. In the text, those are represented by different geometric shapes in place of words.
• Cool Big Sis: Kento considers Euphy to be a refined and reliable senior student.
• Cooldown Hug: When Tia is wreaking havoc in the sports hall due to overusing her magic, Kento doesn't fear it, instead stepping up and holding her hand. Then, he hugs Tia and confesses his love, which makes her stop releasing fireballs.
• Crush Blush: Luna gets flustered and sighs like "Hauu.." whenever Kento looks at her or when she remembers that she's healthy thanks to him.
• D-Cup Distress: Riel's big breasts cause her resistance in the water when she swimming, in addition to stiff shoulders and difficulties in finding garments that fit.
• Defrosting Ice Queen: Tia is initially a haughty Student Council President who coldly rejects Kento's help and advances, even if she secretly is interested in him. In her route, Tia performs the engage with Kento and becomes lovely and wife-like, to the point she admits to being his property.
• Delicate and Sickly: Due to Luna's special blood, she needs to absorb way more life force than her fellow succubi. She is mostly bedridden and with a lack of appetite, and the moments her life force deficiency gets severe, her body heats up and she gets coughing fits. Despite all this, Luna is pretty and has the motivation to greet Kento from the window every day.
• Department of Redundancy Department:
  • On his second day at Lilysthia School, Kento reflects that difficult people have trained him such as Eris, Eris, and also Eris.
  • Kento thinks that he can't tell his father about Eris, succubi nor Eris.
• Deus Sex Machina: In all main routes, Kento and the heroine he chooses accept to take an optional exam for couples. They are given rings that are able to measure the amount of life force exchange. The more life force, the more golden the ring shines. It's basically a sexual performance test in which the rings are delivered to the teacher when the period ends.
• Did I Just Say That Out Loud?: During the Cherry Blossom viewing, Kento has an Internal Monologue about how Luna will be preparing delicious dishes in the pan one day while Tiana won't reach that ideal and is more fit to order at expensive restaurants. Luna suddenly proclaims she will work hard to make that image a reality as if she had read Kento's thoughts, but Riel says those just leaked out from his mouth accidentally. Tiana also heard them.
• Distracted by the Sexy:
  • When Kento goes to the hospital lobby, he can't help but glare at Hospital Hottie Euphoria's large boobs and butt.
  • Kyouta sees the buxom Riel and the first thing he says is "tits". A bit later, he asks if "those tits" are Kento's girlfriend.
• Exotic Extended Marriage: In their culture, succubi are polygamous and perfectly fine with sharing the same man.
• Expository Hairstyle Change: Riel always wears her blue hair in a ponytail. In the end of her route, with the visit and consent from her parents meaning that she will soon become Kento's wife, she decides to let down her hair whenever she's in front of him.
• Fantasy Contraception: Incubi can choose to produce sperm which holds life force and is able to fertilize, or to produce sperm which doesn't. For their part, succubi who are ejaculated inside can suck out the life force from the semen and thus prevent conception.
• Feet of Clay: Tiana scores the highest grades in Lilysthia and is the arrogant Student Council President who inspires admiration on her peers and gives the impression that she has to have access to powerful magic as a succubus. In truth, Tiana is unable to even shapeshift into her feather form despite supposedly possesing enough power.
• Ferris Wheel Date Moment: At the end of the date at the botanical garden, Kento and Euphy ride the ferris wheel. When they get to the summit, he confesses his love and that he wants them to be more than partners for a test, prompting Euphy to french-kiss him.
• Filth: Riel checks out the contents of a bag that Kento reluctantly took from Kyouta, and gets shocked. During dinner and the rest of the night, she seems sullen for no reason. After Riel and Kento take their baths, she reveals the porno book that was inside the bag, misunderstanding tht he preferred it over a succubus like her.
• Finger-Suck Healing: In the greenhouse, Kento is wounded in the finger by a splinter. Euphy carries him to the school infirmary and shapeshifts to engage her healing magic. It doesn't fix the wound completely, so she proceeds to suck on his finger. Things get naughtier from here.
• Flowers of Romance:
  • In the prologue, Kento doesn't know that the bouquets he makes and gives to Riel every day are for Luna, who sucks the life force out of them and interprets them as a romantic gesture.
  • During one morning, Kento prepares a flower arrangement for the class and gives the surplus to Luna as a small bouquet. All of the other succubi, including the teacher, want their own bouquet from Kento and Luna believes it's a proposal.
• Forgotten State of Undress: Riel visits Luna's room after her night of tryst with Kento. He starts to get up and fails to notice he's still naked until Riel insists that she brought his clothes and he should put them on already. Luna similarly gets up drowsy and takes some seconds to realize she's naked.
• Fun with Homophones:
  • When Riel first describes the concept of seiki (精気), or life force, Kento looks at his crotch thinking she meant seieki (精液), or semen, which she denies in embarrassment.
  • Tiana presents Keito the "acts room", or kouishitsu (行為室). He tries to point out that it could be a misspelling of "changing room", also pronounced kouishitsu and written as 更衣室. But no, it's a room for sexual acts.
• Get Out!: Kento is looking for Tiana to talk things over and finds her in the courtyard constantly attempting and failing to shapeshift. She gets pissed off and calls him a peeper who came to mock her and tells him to give it up. He doesn't budge and in the end he gets punished with a footjob.
• Gold Digger: Kyouta arranges to meet with Eris to go shopping, with the illusion that it's a date. Kento warns Eris not to suck on him, and she replies she's going to suck something else. Next morning, Kyouta is asking Kento for money because he has paid too many things for Eris.
• Gratuitous Spanish: Kyouta says goodbye to Eris with an "Adiós!".
• Growling Gut: Euphy asks Kento if he has eaten yet and his stomach answers for him with a growl. Euphy proceeds to bring out a heavy bento lunch.
• Half-Human Hybrid: Euphoria and Tiana have human parents despite looking like a succubus as much as other Lilysthia students.
• Hands-On Approach: In Euphy's route, Kento is helped in studying for the exams by Euphy, who sits really close to him. He can't help but be distracted by her breasts and more. Some of these study sessions tend to segue into sex training as a result.
• Handsplay in Theater: Kento and Riel go watch an action movie and sit in seats made for couples. Kento doesn't like it and can't concentrate on the screen, while Riel takes advantage of the lack of people around them to intertwine her fingers around his. He tells her to focus on the screen, but not much later, she starts speaking in an aroused tone of voice and gropes his crotch, pulling it out for a handjob. They eventually have full-blown sex.
• Hates Being Touched: Euphy has a body condition that makes her get easily agitated and aroused when somebody touches her, even if it's just in the hand. In her route, she slowly gets accustomed to Kento touching her.
• Head-Turning Beauty: Luna, Riel and Euphy meet in front of the flower shop to prepare to transplant some flowers from the garden in Mitsuoka High School. Kento's father and other shopkeepers are envious that Kento is accompanied by such three beauties and they think that the girls light up the commercial district. When Kento and the three succubi arrive at Mitsuoka High School, the gardening club members are similarly smitten by their beauty.
• Hybrid Power: If a succubus and an incubus get together, their offspring will be known as "single" and weaker than the parents. But if a succubus or incubus and a human have a child, they will fully inherit the powers and abilities of the demon parent, becoming thus a "double". That's another reason Kento is in high demand for succubi.
• Imaginary Love Triangle: In Riel's route, Riel doesn't reply to Kento's clear proposal of becoming partners because she believes her best friend Luna is also in love with him, so accepting would be an act of betrayal. When Kento and Riel finally talk it over with Luna, it turns out she has known about Riel's feelings since the beginning and she's fully supportive of the relationship.
• Impossible Pickle Jar: In Luna's route, Kento gives Luna canned juice, but she can't find a way to open it. She attempts to shift and use destructive magic on the can, but is stopped by Kento, who tells her to pull the lid. She's still unable to open it with the advice and in the end Kento has to do it for her.
• Inferiority Superiority Complex: Tia prides herself on being the daughter of Lilysthia's director and thus the heir of the school, and she usually tries to prove herself as the number one. In reality, she's aware that her arrogance is brittle and isn't confident in answering to the pressure of the Student Council President position.
• In-Series Nickname: Kento refers to Luna as "the girl of the window" because can only communicate with her by waving from outside her residence. When they meet in person for the second time, Luna tells that before Riel told her Kento's name, she has known him as "the flower guy" from the bouquets he has made for her.
• Interrupted Intimacy: After Kento and Euphy were done talking to his dad, they go to his room and start making out. They get interrupted by the father screaming for help because he's fallen over and his back is strained.
• Intimate Healing:
  • The succubus princess Luna is Delicate and Sickly due to her chronic life force deficency. When she accidentally touches and absorbs life force from Kento, she gets physically better, although as Riel explains, this is just an emergency measure and the ultimate remedy is him having sex with her. After the deed, Luna gets very energetic, to the point she can attend school again and properly engage her demon form.
  • Riel faints from using too much power during a magic class and Kento takes her to the infirmary. He waits for her to wake up and gives her some sex, thus repelishing her life force.
• Lap Pillow: Kento walks in on Riel while she is training. She accidentally hits a log with too much force and sends some fragments flying towards him, knocking him out. When Kento regains conciousness, he finds himself resting in Riel's lap while she's worried about his Cranial Eruption.
• Lovable Sex Maniac: Eris Erotis is a huge pervert and the president of the "Searching for Pleasure" club. She often pesters Kento with dirty jokes or outright asking him for sex.
• Lunacy: Succubi get periods of heightented activity in which their powers become stronger and at risk of becoming unable to be controlled. Each succubus has one of those periods tied to a specific lunar phase.
• A Magic Contract Comes with a Kiss: The Engage is a contract similar to marriage that a succubus can exchange with the partner, preferably a human, she's going to spend the rest of her life with. The succubus becomes unable to absorb the life force of people other than the partner, but in exchange gets more powers and a reduced life force consumption. To initiate it, the demon has to give a special kiss on the partner's lips. The Engage leaves a magical mark on the demon's neck.
• Magnetic Girlfriend: Up until recently, Kento's interactions with women were just greeting Riel and Luna, the latter from afar beyond the grounds of Lilysthia School. After some happenings, Kento and Luna confess their love and have sex, which proves to be very effective Intimate Healing for her. Rumors about the encounter spread around and all succubi take up an interest on Kento and his amazing life force.
• Marshmallow Hell: After Euphy performs Finger-Suck Healing on Kento, she gets excited, hugs him, and buries his face between her breasts. Kento lampshades in the narration that it's like a manga and that it can really happen in real life.
• Measuring Day: The measuring day in Lilysthia contains an evaluation of the powers of each succubus in addition to the usual physical examination. All girls get gloomy over the latter part and maintaining their bodies in just two days, including the normally cheerful Riel who skips meals. When the day comes, the teacher Lamia tells Kento to help out in the measurements so that he gets more accustomed to the female body. Initially, his job is jotting down the numbers that the doctor says and he just has to avoid looking at the girls in underwear. But when Riel's turn comes, Lamia proposes that Kento should do her measurements himself. Embarrassment and a chance for Riel to bare her boobs ensues, and Kento ends up measuring the remaining students.
• Meet the In-Laws:
  • Euphy uses the excuse of a delivery of flowers to visit Kento's house together with him and announce to his father that they are dating. He's pretty delighted that his son will take in a wife like Euphy.
  • In Riel's route, Riel's parents hear the news that her daughter and Kento exchanged the Engage and come visit the couple at the Astyr residence. Kento and Riel are very nervous moments before, but when they arrive, the parents are very enthusiastic about how much she has developed as a succubus. Everyone, including Kento, Luna, and the parents, consents to Riel and Kento getting married.
• The Mind Is a Plaything of the Body: A succubus' shapeshifting depends on her innate talents, her blood and the amount of life force. If those factors aren't strong enough, she won't be able to control her behaviour while transformed.
• Mind Over Matter: One of the powers of succubi is being able to lift and move objects in the air. In the common route, they practice it by remotely attempting to throw and catch balls. Euphy uses that power to arrange the materials in the greenhouse easily.
• Missing Mom: Kento's mother died when he was very young and he doesn't have any memories of her.
• My God, What Have I Done?: Luna's thirst for life force and succubus instincts take over, so she transforms and attacks Kenta to steal lots of life force. When she snaps out of her rampage, Luna sees Kenta's unconscious body and bursts into tears of remorse. Even after being told that he just fainted for a while, she can't forgive herself and shuts in her room because she had sworn off hurting humans, especially her loved one.
• My Instincts Are Showing: If a succubus gets a bad case of life force deficiency, she will involuntarily transform into her demon form and hunt for humans. Additionally, there are certain periods in which her thirst and activity increases.
• Navel-Deep Neckline: Lamia's feather outfit looks like an open catsuit. It exposes her stomach and is barely hanging on her breasts.
• Noodle Incident: Kento catches Kyouta trying to flirt in front of Lilysthia school and reminds him of something that happened in a mountain two years ago. Kyouta gets nervous and pleads to keep that incident a secret.
• No One Could Survive That!: Luna goes on a rampage due to her succubus instincts taking over and touches Kento, which causes him to go unconscious. She and Riel are worried and regretful because a human getting their life force stolen, especially from a succubus as voracious as Luna, doesn't make it alive. turns out that Kento just fainted for a while and isn't hurt at all, possibly thanks to his body being resistant.
• "No Peeking!" Request: Riel asks Kento to close his eyes so that she can transform into her Stripperiffic demon form and protect him from Luna.
• Ojou: Luna is the head of the royal Astyr family and owns a luxurious residence in the grounds of Lilysthia School. Everything inside that house looks expensive and she employs about a dozen maids, including Riel.
• Old Maid: Lamia congratulates Karen, one of her students, for getting engaged so early. Noelia and Eris snark that Lamia really is a hag who is reaching her limit and getting beaten in the field of marriage. The teacher overhears these comments and punishes both girls.
• Only Known by Their Nickname: Some succubi are always addressed with shortened forms of their gothic-sounding names. Lunastia Astyr has Luna and Ririela Churack has Riel.
• Overcome with Desire: The innate libido of the succubi heroines tends to act up at ill-timed moments:
  • In Riel's route, one morning Riel gives a complicit stare to Kento indicating she's aroused. They go to the toilet for a quickie, but it lasts way longer than they expected and they arrive Late for School.
  • Due to Euphy's oversensitive body, she often has to interrupt her study or dancing practice sessions with Kento and they have to immediately find a room.
  • In Tia's route, Tia and Kento are studying English in the classroom. But soon, she starts asking lewd questions and masturbating under the desk. The couple have to leave the studying behind and head to a private acts room.
• Paralyzing Fear of Sexuality: Riel is way too modest for a succubus. She's insecure about the appeal of her body and while she has some curiosity about Kento and his life force, she never attempts to get phyisical with him in the common route unlike Tiana and Euphy. At most, Riel gives him a kiss on the cheek when she is gifted a bouquet, but nothing more.
• Passing the Torch: Near the end of Tia's route, Tia has accepted her vulnerabilities and decides to not run for the Student Council President election. Kento runs instead, and he wins, with Luna coming in second place.
• Pesky Pigeons: Subverted in Euphy's route. Euphy and Kento visit the aviary in the botanical garden and he feels that a flock of pigeons are about to attack Euphy attracted by the fodder. Surprisingly, the pigeons just gently perch on her.
• Power Perversion Potential: Half of the time, succubi take advantage of their magic techniques, which usually require being transformed into the sexier feather form, to enhance their sex life with Kento:
  • Tia sometimes stares at Kento, paralyzing him and guiding him to perform sex acts.
  • Tiana, Luna and Euphy can recover his erection instantly or make it much bigger than usual.
  • Riel makes the walls in Kento's room soundproof so that the father can't hear them.
  • Luna and Riel learn a spell from Eris that allows them to temporarily lactate.
  • Luna casts body-shifting magic on her breasts to expand them. She fails at undoing this and it backfires on Kento, causing him to have two penises.
  • Euphy can create clones from Kento to have sex with.
• Power-Strain Blackout: In a magic class, Riel is failing to make a ball float. Tiana gives her the advice that she can release all her power in one go to do it. Riel attempts it even if it's a different way magic than her usual, but the ball bursts and she uses up too much life force, so she ends up fainting.
• Prehensile Tail: The succubi heroines sometimes coil their tails around Kento's penis, either to stroke it or to deny him ejaculation.
• The Prom Plot: Near the end of Euphy's route, Euphy and Kento practice ballroom dancing for the dance party that will celebrate her grade's graduation. The training is relevant so that her body oversensitivity doesn't get in the way. When the day comes, they get asked out in the dance hall, but otherwise dance without issues. After the event, Euphy gives Kento a special kiss signifying they are getting engaged.
• Property of Love: The succubi heroines, after exchanging the engage kiss, usually declare themselves to be Kento's property.
• Public Exposure: The art club is using a classmate as a sketch model when Eris jumps in and poses nude for them with Reclining Venus. The members can't concentrate on drawing and Kento, Luna and Tiana happen to walk in on this ruckus.
• Readings Blew Up the Scale: In Luna's route, she and Kento have one of their nights of passion in preparation for the practical exam. When they check out their rings which measure the life force exchange by changing to a golden color, the rings shatter in pieces. Later on, Lamia explains Luna and Kento that the devices couldn't handle that much life force and that this is the first time it happens in Lilysthia's history.
• Reclining Venus: When Eris poses for the art club, she's lying sideways, with only a tiny blanket covering her.
• Reluctant Fanservice Girl: Riel is ashamed that her demon form has only some armor plates covering her breasts and crotch and that it exposes the rest of the skin. She's especially reluctant of shapeshifting in front of Kento.
• The Rival: For years, Tiana has seen the princess Luna as her only obstacle in becoming the number one succubus. Now that Luna is cured, Tiana declares that this semester the top succubus will be decided and that she will take Kento away from Luna.
• Romantic Ride Sharing: For one of Kento's dates with Luna, he gives him a ride on his bike. Luna sits on the luggage carrier while hugging Kento from behind and enjoying the breeze.
• Royalty Superpower: The royal blood Runa inherits from the Astyr family gives her stronger magic powers than other succubi. The same blood also comes with a much higher life force consumption rate, making her Delicate and Sickly.
• Sacred First Kiss: Succubi are very casual about sex, but when they kiss someone, it means the demon is considering them their significant other and thus, the possibility of a long-term relationship.
• Senior Year Struggles: Euphy is graduating next year and feels the pressure to find a lover before it's too late. Lilysthia has the reputation of its students all getting a fiancé, so she has to make an effort to not let it go to waste.
• Sex for Solace: After having a Shower of Angst with identitiy crisis, Luna returns to Kento's room nude and immediately gets to having sex with him in a more animalistic and forceful way than previous times. Kento asks her to stop and talk her worries over, but she goes on until he faints.
• She's Not My Girlfriend: The day Kento sleeps with Luna, he returns home too late. Riel had called her dad previously telling that he was at her home, giving him the wrong impression. When Kento's father and Kyouta meet Riel, they assume her to be Kento's new girlfriend, which he denies.
• Shipper on Deck: Throughout Riel's route, Luna supports that Kento chose Riel for a relationship and constantly tells the latter not to worry about her feelings.
• Shower of Angst: In Luna's route, Luna has a shower in Kento's bath while reflecting on several things in tears. Firstly, that she believes she's superficial and she doesn't know what she will become in the near future. Secondly, that things would be better if she weren't a succubus. Finally, her fear that inheriting the head position of the Astyr family and being engaged to Kento will mean that she will steal his dreams of continuing to be a florist.
• Skinship Grope: During the Measuring Day, Eris gropes Luna's boobs from behind in order to tease Kento. Riel interrupts her with a chop to the head.
• Smells Sexy: When Euphy is sick due to her high activity period, Tiana gifts her a flower arrangement made by Kento. Euphy detects the faint scent of Kento's life force in the flower and becomes hot and bothered beyond the point of no return.
• Spit Take: Kento spits out his tea when Eris asks if he's interested in sex. To make matters worse, she calls it a "tea facial ejaculation".
• Stern Teacher: The homeroom teacher Lamia inspires fear in her students with her menacing stares and her strict attitude towards not wanting any problems. She's pretty competent otherwise.
• Student Council President: Tiana is the daughter of the manager of Lilysthia School and the president of the administrative department, which is equivalent to the student council of other schools. She has quite the authority over other students, who respect her threats and warnings.
• Succubi and Incubi: Succubi live in the secluded Lilysthia International School. These girls aren't able to generate energy on their own or from food, so they have to absorb the life force of other living beings. It doesn't have to be through sex, they can use fresh flowers. Succubi can also transform into "feather" forms which include goat-like horns, bat wings, a tail and magic powers.
• Succubus in Love:
  • Current sucubi don't hunt random humans for life force. Many of them have a dream of finding a special partner that can resist them without death or injuries. There are some incentives for doing so, like children born from human-succubus relationships being stronger. Succubi can also engage with their partner, which is a special kiss similar to marriage that gives them a mark on their neck and more power boosts.
  • In the case of Luna, she sees Kenta from the window of the roof every day and holds a crush on him because he's the one who makes bouquets that Riela brings to her so that she can repelenish a bit of life force. However, Luna doesn't event want to touch him because she fears he will suck up too much life force and injure him. She does it because of an incident in which she goes berserk due to starvation, but later Kento visits her to reassure her that he's resistant to Vampiric Draining. They end up making love the same night.
• Supernatural Sealing: With the regret of having attacked Kento, Luna seals the door to her room so that no one can come in. Riel has to break the seal in pieces to allow Kento to enter.
• Superpowerful Genetics: Some succubi and incubi inherit various magic powers from their parents, and thus are known as primals. If one of their parents is human, the power will be boosted. However, other succubi don't have such luck because they miss the genetic factor.
• Super-Power Meltdown: In Tia's route, the students have a final class on shapeshifting before the exams. Tia doesn't want to fail to shift to her feather form again, so she accumulates too much magical energy. She gets to transform, but her mind is unstable and unable to control her behavior. She proceeds to shoot fireballs all around the sports hall and is only stopped by Kento hugging her.
• Tagline: Inma to Raburabu Ibunkakouryuu ADV, roughly translating to "Lovey-dovey cultural exchange with succubi adventure game''.
• They Call Me MISTER Tibbs!: Euphoria doesn't like being addressed by her name or with "-san" and would prefer if anyone used "Euphy-chan". She's satisfied with the protagonist using "Euphy-senpai", though.
• Three-Way Sex: In Riel's route, Riel and Luna are practicing shapeshifting with Kento watching when the latter uses up too much life force. Kento's relationship with Riel has progressed so much that he can't repelenish Luna's life force alone, so he decides to bang both succubi at the same time. This event shattered the last remains of shame in Riel.
• Through His Stomach: Riel is very insecure about how to respond to Kento's proposal of becoming partners. After a few days, she shows up at his house and borrows the kitchen to cook dinner for him and his father. That eases her into consulting her romantic issues with Kento.
• Too Much Information:
  • Tiana insists that Kento is allured by her, and Luna counter-argues by bringing up her body and describing all the things Kento did to her during Their First Time in great detail. The dude in question tries to stop her, Tiana is embarassed and declares that she has understood too well, and the twins Riel and Noelia get the impression that Kento is a beast.
  • Kento gets uncomfortable on the first day of school because his new succubi classmates introduce themselves by exposing their sexual preferences.
• Twin Threesome Fantasy:
  • In her route, Euphy uses succubus powers to split two clones off Kento in a way they have a psychic link that allows them to share the same stimuli. She proceeds to get it on with the three Kentos, although the clones eventually vanish.
  • In Tiana's route, she demonstrates to Kento a cloning technique in the sports hall. However, the three clones of her she produces are stark naked and immediately jump on him. Tia can't make them vanish because of her arousal. It comes down to Kento doing all four Tias and bringing the clones to climax so that they can disappear.
• Unique Protagonist Asset: Kento has a special consitution among humans which gives him resistance to the succubi's Vampiric Draining and a thick life force they consider delicious. It's the main reason he gets to transfer to Lilysthia School.
• Vampiric Draining: Most succubi can get enough energy by draining life force from food, but Luna's needs are higher. She usually takes the bouquets that Riel gives her, and sniffs the flowers causing them to wither. In the incidents in which Luna's instincts go berserk, she attacks and touches Kento, stealing a large amount of life force. It could have been fatal, but Kenta just fainted for a while.
• Wardrobe Malfunction: In a special magic class, the few succubi who can shapeshift do so one by one. In Luna's turn, the feather outfit doesn't fully materialize, leaving some naughty bits exposed. She wonder why everyone is silent, takes a while to realize her nudity, and gives a high-pìtched scream.
• Weirdness Censor: Luna suddenly shapeshifts in front of a crowd when she is being carried to the hospital. Euphoria calls for them to evacuate and the doctors and bystanders are confused, but they don't seem to react to the demon girl floating near them.
• World of Buxom: It seems that being a succubus comes with larger assets. Tiana is the most modestly-sized, but her breasts are still noticeably round.