Gogo Matsumoto

An adorable and slightly dim-witted 11-year old girl but a ludicrously tough human fighter.

• Amusing Injuries: Gogo can get banged up at times, bordering on Body Horror, but her cartoonish and durable nature makes her maimings more comical.
• Badass Adorable: Gogo Matsumoto is an extremely cute little girl but is clearly capable of wiping the floor with her adversaries if she has to. She eviscerates an entire baseball team's worth of demons in the first episode alone.
• Bare-Fisted Monk: Downplayed. Gogo's fighting style primarily involves hand-to-hand martial arts, but she also wears the appropriate shin and wrist guards to keep from injuring herself when performing attacks.
• Blind Without 'Em: She cannot see a thing without her glasses, to the point of facing the wrong way when fighting her opponents.
• Charles Atlas Superpower: Gogo's strength and toughness aren't the result of special powers or demonic heritage - she's just dedicated to her training and keeps her head in combat and that's all she needs to defeat demons much more powerful than her.
• Clark Kent Outfit: Parodied in the first episode, where she takes off her uniform when getting ready to fight Akumugai Ogre's team, revealing a freakishly and incredibly detailed muscular upper body. She immediately reverts back her original proportions in the next shot.
• Cute Bruiser: Gogo is as exactly as cute as you'd expect a precocious 11-year-old girl to be but she's also capable of taking on demons over twice her age and three times her size.
• Dirty Kid: Implied. When Mama uses very suggestive hand gestures to explain Nono's conception, Coolfrog covers Gogo eyes, only for her to position her pupils so she could look anyway.
• Expository Pronoun: She use the masculine pronoun "Boku" when referring to herself as an indicator of how she's a Little Miss Badass and a lot tougher than she looks.
• Hero with Bad Publicity: Despite her skill and victories at such a young age, Gogo isn't exactly well-liked by a large portion of the audience of the Infinite Tournament. Since the Akumugai Demons primarily watch it to get their kicks by seeing humans get brutally killed in various ways, they don't like it when humans like Gogo actually win their matches. She's called a bitch by an angry demon after she defeats Geiko and the only response she gets when she introduces herself in "Toothless Aggression" is someone yelling "Hey, FUCK YOU!"
• Honor Before Reason: She seems to take the formalities surrounding the Infinite Tournament seriously, even when her opponents are Combat Pragmatist demons. In the first episode, her bowing politely to Akumugai Ogre prompts him to kick her in the head while she's not looking, and she still does it again right before she actually starts to fight back.
• Idiot Hero: Gogo isn't particularly smart, even for an eleven-year-old. She continuously gets distracted and generally acts empty-headed, believing that Emperor Koro and the Japanese Emperor are giants because they're projected on large TV screens. At one point, this is visually represented by her head opening up and a bird picking at her brains.
• Japanese Spirit: Jushin Aniki says that her resilience and strength in battle comes from her "Ichigeki", the memories and loved ones she holds closest, and that this fills her with an unmatchable determination to succeed.
• Kid Hero: At the start of the Infinite Tournament, Gogo is only 11 years old but is more than capable of defeating demons of much higher notoriety than herself in single combat.
• Let's Get Dangerous!: She's normally pretty airheaded, but when she actually starts to fight she proves herself to be an extremely strong and skilled combatant.
• Little Miss Badass: She's naught but an 11-year-old girl but is capable of mopping the floor with demons twice her size.
• Made of Iron: Gogo is one tough little girl—she's withstood attacks that would easily kill or severely maim a grown adult on the regular and still kept coming. Given how her father inexplicably manages to recover from getting eaten by a crocodile demon, it's possible she gets it from him.
• Practically Different Generations: Her half-sister Nono was born around when Mama retired 20 years ago, but Gogo herself is only 11 years old.
• Stock Shōnen Hero: Gender-inverted. Gogo fulfills almost every common trait of an archetypical Shōnen protagonist (she's a Kid Hero who's incredibly airheaded but lethal in a fight, wants to become the best by winning the Infinite Tournament and and has extremely powerful hidden potential she has just barely begun to unlock), with the only major deviation being that she's a girl when this is typically an almost Always Male trope.
• Waif-Fu: Downplayed. Gogo has the stature and physique of an 11-year-old girl, but is easily capable of shattering her opponents' bones, hitting them so hard their organs come flying out and sending her enemies flying with her punches. However, a close-up gag in the pilot shows that she's comically jacked with muscle.

Nono Matsumoto

^{Nono in human form}

Gogo's ill-tempered and moody but golden-hearted older half-sister. She is really the daughter of Mama and Emperor Koro, as a product of their love affair 20 years ago.

• Big Sister Bully: Zig-zagged. On the one hand Nono gets pretty rough with Gogo, calls her a lot of names (including expletives like "dipshit"), and even mockingly threatens to eat Coolfrog, but make no mistake; she is the only one allowed to do so, and any demon who makes fun of her sister (whom she is genuinely proud of the accomplishments of) would do well to take caution around her.
• Disowned Parent: She has 0 interest in reconnecting with her estranged biological father, in part due to his deadbeat behavior towards her.
• The Gadfly: As part of her being a Big Sister Bully, she enjoys making Gogo mad, like when she jokingly threatens to eat Coolfrog (which clearly more than riles Gogo up).
• The Glasses Gotta Go: Nono doesn't wear her glasses casually like the rest of her family, likely out of style, though she is seen using them to read.
• Human-Demon Hybrid: She's the half-Demon daughter of Mama and Emperor Koro, though her base form seems to be her demon form: she can turn into a human form by sneezing, and back. She also transforms into human form when exposed to cold water, even just by stepping in a puddle with shoes on.
• Hypocritical Heartwarming: Has no problems insulting, belittling or, if the opening credits are anything to go by, shooting her younger sister, but if anyone else comes after her, there'll be hell to pay.
• Jerk with a Heart of Gold: Despite acting like a huge bitch most of the time, she genuinely believes in her little sister.
  Nono: Oi, ugly! She may not look like much, but my little sister has trained her butt off to compete in this tournament, and she's one of the strongest fighters I know!
  Gogo: Thank you, big sis! I always knew you believed in me—
  Nono: Yeah, nobody cares.[tosses her aside]
• The Lad-ette: Nono is fairly abrasive and quick to berate. She's also shown to smoke and drink frequently, her preferred brand of beer seemingly being Sapporo.
• Ms. Fanservice: Is the primary source of the series' sex appeal, being a busty half-demon tomboy spitfire, who exposes her butt when in her human form due to her now-missing demon tail having ripped a hole through her pants.
• The Pig-Pen: If Gogo's comment is anything to go by, Nono doesn't take care of her hygiene very well. In episode 2, when Gogo takes a closer examination of the outhouse, she comments that it smells like Nono's room.
• Sensible Heroes, Skimpy Villains: While more a jerk than a villain, when Nono is in her human form, her hoodie is zipped all the way up. Her demon side has it zipped down enough to show off all of her bust. Given how much of a bosom she has in her human form compared to her demon form, she may simply be too busty in demon form to zip it up all the way.
• The Shut-In: Implied. She is shown to sit in a dark room on her computer with crumpled beer cans littered around and an accumulating ashtray on her desk. She does still leave her room without complaining or noticeably disliking being outside, though her mom has to browbeat her into doing so at first.
• Sir Swears-a-Lot: It can't be accurately determined how much of her swearing is coming from the subtitles, but she nevertheless uses a lot more pejorative language than the rest of her family.
• Strong Family Resemblance: Her demon side has the same skin color and horns as Emperor Koro.

Mama Matsumoto

Gogo and Nono's mother.

• Action Mom: As "Toothless Aggression" shows, Mama is more than capable of kicking demon ass by herself. She also dropkicks Nono's computer monitor out a window so hard that it only lands eight minutes later on the last surviving baseball demon's head in the first episode. She fought in the Infinite Tournament 20 years ago, which helps explain this.
• Almighty Mom: As demonstrated in the intro and first episode, Mama is capable of wrangling Nono, her extremely abrasive eldest daughter, as well as keeping Gogo from stealing from her cookie jar despite Gogo being able to cleave demons in half with a karate chop. She initially tries to stay off Emperor Koro's radar, but once he approaches her with the intent of rekindling their relationship, she effortlessly rebuffs him and demands he makes a genuine effort to be a father to Nono.
• Amazonian Beauty: She has a very muscular physique that is showcased anytime she in her wrestling clothes. The outfit is already revealing but the show takes it a step further in episode 3 which a lot of sensual angles during her fight that focus on her muscles and curves.
• Clark Kent Outfit: Her normal clothes hide her toned physique.
• Drives Like Crazy: Mama doesn't seem to have a good grasp on the controls of the family car, since her crashing it is a Running Gag and she frequently takes her eyes off the road and her hands off the wheel.
• Glamorous Single Mother: Implied; age-wise she's have to be in her 40's-50's, never seemed to have married either of her daughter's fathers (With Emperor Koro running away at the mention of Nono while Gogo didn't even know who her father was until he was pointed out to her and he never seems to actually be around the family unless it's for the sake of a gag), had and raised 2 children, and yet still looks, moves, and fights like she's in her early-mid 20's. Telling, when Emperor Koro asks her to get back together with him, none of her reasons involve her being current married or with anyone.
• Her Name Really Is "Barkeep": "Mama" isn't just what her daughters call her, it's her actual first name. This is further parodied by how instead of having a "Mom" tattoo on her bicep, she has a tattoo that says "Me" instead.
• Leotard of Power: As a pro wrestler, Mama's combat gear is a form-fitting pink leotard with a Cleavage Window that accentuates her curves.
• Living Legend: Mama is feared and respected by the Akumugai Demons for being the only human who ever came anywhere close to winning the Infinite Tournament, to the point that she is instantly recognized by the crowd in "Toothless Aggression".
• Ms. Fanservice: Not as much as Nono, but her combat gear is a form-fitting, cleavage-exposing wrestling leotard and several of the shots highlight her curves. Episode 3 almost puts her on par with Nono with how many suggestive shots of her in her leotard there are.
• Open-Minded Parent: Mama has no objections to letting her 11 year old daughter compete in a deadly tournament where the possibility of death is very real, likely in no small part because she herself once competed in (and nearly won) the same tournament and therefore must believe her daughter can do the same. She does however worry about Gogo and wishes her luck any chance she can.
• Pro Wrestling Is Real: Parodied. Mama is a pro wrestler who managed to get all the way to the grand finals of the Infinite Tournament using only said pro wrestling skills. In "Toothless Aggression" she performs the Matsumoto Power Bomb on Shirisaku Nabe with such force that it drives him straight through the center of the earth and then finishes him off with a dropkick that turns him into a meteor, and a fan in the audience still dismisses pro wrestling as being "so fake".
• Retired Badass: Twenty years ago she was an Infinite Tournament contestant just like her daughter Gogo, and considering the Tournament's stated high human mortality rate it's impressive that she's still alive, let alone that she was the only human to ever make it to the Grand Finals. She even bedded Emperor Koro, for good measure, and he reacts with terror when he finally recognizes her! Nowadays, though, she's either just a Housewife or a single mother.
• So Proud of You: Mama never fails to find opportunities to let Gogo know how proud she is of her daughter whenever she wins a fight.
• Vague Age: She's still very youthful-looking, but has been retired for 20 years and is the mother of two children, which would seemingly put her in around her mid-40s or perhaps even 50s. She certainly doesn't move like she's middle-aged, as none of her combat skills have rusted with time whatsoever.
• Wrestler in All of Us: Mama utilizes a pro wrestling moveset in combat, such as the fabled Matsumoto Power Bomb. Justified, as she is an actual pro wrestler.

Papa Matsumoto

Voiced by: Akihiro Tagaki (episode 2), Chihaya Hanai (Episode 3)

Gogo's father. He's been here the whole time.

• Amicable Exes: Implied since Gogo had no idea she even had a dad until he was pointed out to her. Note that she's 11 years old. Mama also doesn't reject Emperor Koro when he tries to get back with her by saying she's currently not single.
• Bit Character: His entire existence is basically to serve as a joke about how he never appears in an entire episode until the very end for a single line of dialogue, and that the entire show is much more focused on the women of the Matsumoto family.
• Catchphrase: Parodied: The only dialogue he ever has when he shows up for a gag is to wave and shout "Hey, everybody!"^note "Oi, mina!" in the original Japanese.
• Nice Guy: Seems like a nice enough guy in the few seconds we get to know him.
• Remember the New Guy?: Parodied. in the second episode, Gogo and Mama act like he's always been at their side up to that point, and then are disturbingly nonchalant when he's eaten by a swamp crocodile.
• Unexplained Recovery: He gets eaten by a crocodile demon in the second episode only to show up completely fine in the following episode. This is possibly where Gogo gets her durability.
• We Hardly Knew Ye: Immediately killed/eaten by a crocodile demon mere seconds after his introduction. He's shown to have fully recovered by the following episode.

The Emperor of the Earth nation of Japan. He first appears to personally congratulate Gogo for defeating Akumugai Ogre and his team in her first match.

• Is This Thing Still On?: The camera lingers on him for a while after he delivers his message in the first episode, prompting him to meekly ask if the audience can still see him.
• Medium Blending: Unlike the rest of the show which is a 2D animated cartoon, the Emperor is played by a live-action human.
• Occidental Otaku: He certainly brings this trope to mind, with his portly body and slightly accented Japanese. He also asks whether the audience can see him in English before the screen cuts to Emperor Koro.

• Gratuitous English: Parodied: He talks exclusively in English despite Gogo being Japanese and not speaking it — she has to read the subtitles to figure out what he's saying. Justified because he was cursed by a ghost to be forced to speak the language.
• Medium Blending: Like the Japanese Emperor, he's a live-action human rather than an animated cartoon character like the rest of the show.
• My Hovercraft Is Full of Eels: His name is two random Japanese words that mean nonsense when combined; "Jushin" means "The act of reception" and "Aniki" is a respectful term for an older brother.
• Occidental Otaku: He looks very much like a stereotypical weeaboo, from the bad cosplay to the trilby and neckbeard.
• You Look Familiar: invoked Parodied and lampshaded. Since he's played by the same actor as the Japanese Emperor, Gogo says that he looks familiar, only for him to say "What are you talking about?" as the ethereal spirit vortex around him turns into a green screen.

The ruthless Emperor of the Akumugai Demons and overseer of the Infinite Tournament. Koro was once in love with Mama twenty years ago when she was a tournament contestant herself, resulting in the birth of his daughter Nono.

• Affably Evil: It's easy to forget from how silly he is and how pathetic his desperation to rekindle his relationship with Mama can get that Koro is the brutal demon tyrant of an enslaved Earth (not that he doesn't have several Kick the Dog moments to remind you of this).
• Bad Boss: He crushes the head of one of his subordinates just to demonstrate to the Nabe brothers what he will do to them if they fail to defeat Mama and Gogo. And he also follows through on the threat with the surviving Nabe brother.
• Beware the Honest Ones: He threatens to crush the heads of the Nabe brothers should they fail to defeat Mama and Gogo. Lo and behold, when they lose and Yubisaki is the only brother around, Koro crushes his head exactly as promised.
• Big Bad: He's the one who set up the Tournament, which the opening narration explains is basically just for the Akumugai Demons' enjoyment so they can watch Humans get pitifully ripped to shreds by other demons.
• Bigot with a Crush: Despite his own demonstrated hatred of humans and his relishing of their suffering, Koro was once and still is deeply smitten with Mama Matsumoto, a human woman, enough to conceive a child with her (though he didn't learn of Nono's existence until much later).
• Black Cloak: He is always seen wearing a black hooded cape to emphasize his evilness.
• Comedic Sociopathy: He is shown many times to despise humanity and finds it hilarious when they are killed, which is portrayed in a very comedic fashion.
• Disappeared Dad: Parodied. It's heavily implied that Mama abandoned him after their love affair (likely after getting pregnant) and made it a point to avoid him at all costs, meaning he was completely blindsided at realizing he had a kid. At first he's shocked once he learns of Nono's existence after she's already all grown up, but then suddenly wants to make up for lost time in "Toothless Aggression" though it's obvious that it's mostly just to get back in Mama's good graces. Case in-point: he gets the hell out of dodge when Mama tells him to be a parent to his child, and when he tries to compliment Nono after the Matsumotos defeat the Nabe brothers, he very obviously reads prepared notes from his palm and mistakenly calls her a "young man".
• Even Evil Has Standards:
  • As much as he enjoys watching humans get torn apart by demons even he's reluctant to have Gogo, an 11-year-old girl, fight a whole group of demons by herself and only allowed it because he realized it was his fault for not double checking the Demon Team's application thoroughly. That said, having a child go up against a single demon is perfectly fine by him, as he laughs uproariously when a small girl gets eaten by a crocodile demon.
  • From what can be gleaned from the first episode, the humans competing in the Infinite Tournament are volunteers, suggesting that he's not making people compete in a lethal tournament against their will.
• Evil Overlord: Of the Akumugai realm and the conquered Earth.
• The Grinch: It's not explained why he massacres Santa's team of reindeer in "Christmas Panic" without hesitation, but the fact that he goes for it right after Jin confirms that it's Santa certainly makes it look like he hates the guy. Santa even muses that he always has trouble delivering his presents to Death Island, suggesting it's not the first time he's encountered Koro either.
• Hilariously Abusive Childhood: A flashback to when he was young reveals his mother yelled at him and his father stomped him into a puddle for asking for ice cream before dinner.
• In a Single Bound: Koro is capable of jumping so high into the air that it essentially functions as a form of pseudo-flight.
• Maou the Demon King: Koro is the supreme Emperor of the Akumugai Demons, and he certainly looks the part with purple skin, a huge chest with rippling muscles and gigantic pectorals and a cloak with horned skull epaulets.
• Parental Abandonment: He dipped out before his daughter Nono was even born. When Mama demands that he be a proper father to her in Episode 3, he proceeds to flee from the responsibility again. He tries to make it up to Nono at the end of the episode, but she has no intention of accepting him as a father.
• Shared Family Quirks:
  • Just like the Matsumotos, he also has a big pair of glasses. And just like his daughter Nono, he usually doesn't wear them despite having vision issues.
  • He seems to have inherited the Verbal Tic of saying "Nice going, you little twerp!" from his father, which Nono also says near the start of Episode 2 as Foreshadowing that she's his daughter.
• Walking Shirtless Scene: Koro has yet to be seen wearing any kind of upper body garment to cover his impressive chest.

The emcee of the Tournament, Jin is just as sociopathic as any other demon.

• Cute Monster Boy: As opposed to the other, more monstrous demons, Jin looks more like a regular human but with wings and fangs.
• Even Evil Has Standards: Subverted: It looks like he's considering stepping in and evening the odds for Gogo against Akumugai Ogre's team, but then immediately doubles back and says he doesn't care.
• Large-Ham Announcer: Part of Jin's duties include loudly announcing the start and victors of each tournament match, which he does with gusto.
  Begin!^note "Hajime!" in the original Japanese
• More Despicable Minion: Whereas Koro hesitates to have Gogo, an 11-year-old, go up against a group of demons, Jin has no such compunctions.
• Number Two: When he's not serving as referee of the tournament, Jin acts as Emperor Koro's assistant and manservant.
• Wholesome Crossdresser: Jin has been stated by Word of God to be male, but he dresses like an Office Lady, speaks with an effeminate, high-pitched voice and has a very feminine-looking Hime Cut. The only real suggestion that he's a boy is the rather large and pronounced bulge under his skirt, and Mama referring to him as "Mr. Jin".

• Bodyguarding a Badass: It's demonstrated many times that there is a reason that Koro is Emperor of the Akumugai Demons, as he's an unbelievably strong fighter in his own right, and yet Hamada still serves as his bodyguard during public appearances.
• Rugged Scar: A big diagonal scar runs across his left cheek.

• Easily Distracted Referee: He winds up serving as this classic puroresu trope when he gets Distracted by the Sexy in the form of Ms. Mika in "Toothless Aggression", which allows Jushin Aniki to interfere in the match and for Mama to ve bailed out of her submission hold.

• Casting Gag: She's voiced by Maki Itoh, a wrestler from Tokyo Joshi Pro Wrestling, in a cameo role as a reference to how the episode she appears in is a Pro Wrestling Episode.
• Cute and Psycho: She may be quite attractive, but she's still an Akumugai Demon and has a violent temper and wild, crazed eyes.
• Gold Digger: She gets extremely indignant after the Nabes lose their fight, complaining that Yubisaku's fingers aren't good for anything anymore and that they blew their chance at a ton of money, implying she was only in it for the financial and sexual compensation.
• Huge Girl, Tiny Guy: She towers over both the Nabe brothers.
• Intentional Engrish for Funny: All the English swear words she starts shouting at the end of "Toothless Aggression" are heavily accented in Japanese, which only adds to the hilarity of the outburst.
• Live Mink Coat: Her white coat has a wolf's head at the top that is still very much alive and seemingly rabid.
• Ms. Fanservice: She's very beautiful and curvaceous, and she causes multiple instances of Distracted by the Sexy, as well as multiple Cock Fights between the Nabe brothers over her.
• Sir Swears-a-Lot: As expected from a character voiced by Maki Itoh, she cusses up a storm in a Gratuitous English Foreign-Language Tirade after the Nabe twins lose. This is also her only dialogue in the episode she appears in.

Akumugai Ogre's Team

Gogo's first combatants in the Tournament, Akumugai Ogre is an unscrupulous baseball player demon who blatantly skews the battle in his favor by (tournament legally) forcing Gogo to fight his entire baseball team at once.

• Cyclops: He and the rest of his team are one-eyed giants resembling one of these.
• Didn't Think This Through: In the ensuing chaos after Gogo begins to demonstrate her true skill, one of the baseball demons lights a giant Cartoon Bomb and then just holds it until it explodes. He even lampshades it:
  Baseball Demon: WHY THE FUCK DID I BRING THIS—!?
• Gratuitous English: Akumugai Ogre has the word "KILL" written on his batter's gloves.
• I Know Madden Kombat: He and his team are styled after baseball players and fight using bats, balls and gloves. Akumugai Ogre himself fights with a spiked baseball bat so sharp it decapitates three people effortlessly.
• Made of Plasticine: Considering that later opponents that Gogo faces are much, much more resilient to her blows, these guy's bones must have been made out of chewing gum or something with how effortlessly they are disemboweled and mutilated on the battlefield.
• Oh, Crap!: He has the reaction upon seeing Gogo remove her Clark Kent Outfit and realizing how jacked she actually is.
• Starter Villain: He and his team are the first demons Gogo fights in the Infinite Tournament.
• Wolfpack Boss: Akumugai Ogre flagrantly cheats the rules of the tournament by having his entire baseball team fight Gogo simultaneously, effectively becoming this for her.
• Would Hurt a Child: Has no problem kicking a prepubescent child in the face.

A scary one-eyed demon who lives out in the depths of Gatagataburi Forest, kills people with a machete and is meant to be Gogo's second Tournament opponent. He is Geiko's father.

• Affably Evil: Geison is a polite, paternal figure compared to a lot of demons and genuinely loves his daughter from the look of it, but he's still an Ax-Crazy murderer.
• Captain Ersatz: Of Jason Voorhees. He's a tall Made of Iron slasher movie villain clad in a heavy coat and hockey mask who wields a machete. His name is even just "Jason" with a hard "g".
• Dark and Troubled Past: The list is... interesting to say the least.

• Good Parents: Murderous behavior aside, Geison loves his daughter by all means.
• Graceful Loser: He politely congratulates Gogo on her victory over his daughter and then leaves without causing any more trouble for the Matsumotos.
• Made of Iron: As an allusion to the character he's based on, Geison mentions that he's been drowned, stabbed, impaled, set on fire, drowned while set on fire, launched into space and exploded with a bomb, and he's always felt ok the morning after.
• Mad Eye: Geison's single eye visible through his mask is very big, veiny and bulgy, accentuating his whole Ax Craziness.
• Musical Nod: Geison's introduction is accompanied by a "kee-kee-ko" sound very similar to Jason Voorhees' own "k-k-k-ah-ah-ah" Leitmotif.
• Wouldn't Hurt a Child: In a shocking contrast to other demons like Akumugai Ogre, Geison refuses to fight Gogo on these grounds when he's matched against her, but gladly substitutes his own daughter Geiko in for himself.

^{Click here to see her unmasked} "SHE'S HIDEOUS!"

Geison's equally crazy, equally indestructible daughter. Geison swaps himself out for her against Gogo in the tournament due to not being comfortable fighting a child.

• Ax-Crazy: Unlike her father, Geiko skips the foreplay and goes straight for the jugular of her opponents.
• Daddy's Girl: Given how she's a carbon copy of her dad and her mother is nowhere to be seen, this is readily apparent. Gogo even nearly manages to defeat her by pretending to be Geison and disciplining her.
• Gross-Up Close-Up: Parodied when her mask falls off. We're lead to be believe she'll be hideous by the reactions of Gogo's family... only for her to be pretty enough that flowers are blooming around her head.
• Hockey Mask and Chainsaw: Parodied; her chainsaw weapon is actually just a plastic chainsaw toy, and her only actual weapon is a knife, essentially a bite-size version of her father's machete.
• Informed Deformity: When her mask comes off, Nono and Mama are repulsed by her appearance and call her hideous, but to the audience, she looks fairly pretty.
• Like Parent, Like Child: She's basically a pint-size version of Geison, right down to the hockey mask.
• Little Miss Badass: Just like Gogo, she's Made of Iron despite only being a young demon girl.
• Made of Iron: Being Geison's daughter, she's easily capable of shrugging off Gogo's blows despite some of them being powerful enough to punch her exposed eye out of its socket.
  It's gonna' take more than some measly punches to keep me down~!
• Mirror Boss: The biggest reason why Geiko is such a strong adversary for Gogo is that they're basically evenly-matched little girls, one being a human and one being a demon. They even use some of the same martial arts techniques.
• Mirror Character: Geiko is like a demon version of Gogo: they're young girls of the same height, they can equally shrug off just as much punishment, and they're both extremely skilled fighters.
• Psycho Knife Nut: Her primary weapon is an impeccably sharp stainless steel knife, and she's just as if not more crazy than Geison.
• Stock Slasher: Even as just a child, Geiko is a gloved, knife-wielding maniac in overalls. She has a few Hockey Mask and Chainsaw elements (like her one-eyed face mask and the toy chainsaw she fights with), but she's otherwise the genuine article.
• Unskilled, but Strong: Prioritizes fast and strong strikes and grabs over safe and sustainable ones, such as grabbing Gogo by the front of her gi to lay in some quick punches rather than try for a more secure lock that would've better capitalized on her great strength. This allows her opponent to easily counterattack since all her limbs are still free.
• Worthy Opponent: She compliments Gogo for being a good fighter, and her main motivation for being so determined to defeat her is less Fantastic Racism like Akumagi Ogre and more a desire to prove herself to her father.

Yubisaku and Shirisaku Nabe

• Ass Kicks You: Shirisaku's Signature Move is to extend his butt outward at a bulletlike speed to crush his opponent.
• Cool Shades: They both wear large, jet-black horn-rimmed sunglasses at all times, even during the match itself.
• The Dividual: As a wrestling tag team, they're more or less identical except for their skin coloration and their working together as a team is what has brought them such fame and prestige amongst demonkind.
• Dual Boss: They are a tag-team duo that essentially serve as one of these for Gogo and Mama, who have to present a combined front to take them down.
• Extendable Arms: Yubisaki's Signature Move is to poke his opponent's eyes out with his extendable middle fingers, which fails to work on Gogo because she's wearing glasses.
• Fusion Dance: Parodied. They are capable of combining their powers to initiate a much stronger "ultimate form", but as seen in the above image it just consists of Shirisaku sitting piggyback on Yubisaku's shoulders.
• Identical Twin ID Tag: Though they're otherwise impossible to differentiate, Shirisaku is the red one and Yubisaku is the blue one. Shirisaku also has two horns while Yubisaku has one.
• Meaningful Name: Each of their names contains the body part they use to attack ("yubi (指)" meaning "finger" and "shiri (尻)" meaning "rear end/buttocks").
• Red Oni, Blue Oni: Downplayed. Their designs reference this dichotomy, as they resemble stereotypical Oni and Shirisaku is red and Yubisaku is blue. However, they more or less have an identically Hot-Blooded personality.
• Weaksauce Weakness: Parodied. Yubisaku is apparently weak to glasses, which causes his signature finger attack to No-Sell on Gogo.

• Author Avatar: Coolfrog is nigh-identical to speedoru's channel avatar.
• Bit Character: He only serves the purpose of delivering a few gags here and there, but otherwise doesn't get any characterization.
• Head Pet: Coolfrog is usually found atop Gogo's head whenever she's not in a fight.

Voiced by: Chihaya Hanai

• Santa Claus: The completely classic version. A big, jolly guy who delivers presents by flying through the sky on a sleigh pulled by magical reindeer.

• Chuunibyou: It's heavily implied that he's an edgy kid with delusions of grandeur to whom the power of doing a Fan Sub has gone to his head.
  i can hvae your whole website taken down (snaps fingers) LIKE THAT.[sic]
• Felony Misdemeanor: During the "Christmas Panic" short, he wonders how many years he can be jailed for selling bootleg anime in the USA.
• Fictional Social Network: They mention a website by the name of "JAPANIMATION-CENTRAL", a fictitious website no doubt inspired by numerous online anime forums.
• Rouge Angles of Satin: His messages are full of spelling mistakes.
• Running Gag: He leaves notes at the end of every episode threatening and berating people for reposting the group's subs anywhere else than their own site. They are over the top and filled to the brim with spelling errors.
• Spice Up the Subtitles: This is seemingly a persistent issue with his fan subs, as he apparently inserted 200 slurs into the subtitles of the first episode of a show (implied to be for very young children) called Chibi Angel Kittens and has to apologize for it at the end of "Toothless Aggression".
• The Stinger: He shows up Once an Episode after the credits to make one last joke before the episode ends in the form of subtitles accompanying some stock footage of unrelated Japanese media.