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The Cute Rabbit Who Transformed Into a Girl

Erina is a bunny that, for unknown reasons, has turned into a human.

  • Action Girl: She uses a huge mallet, can throw kicks and shoot energy balls, and generally kicks the ass of everyone who challenges her with the help of her trusty Fairy Companion.
  • Ambidextrous Sprite: Erina's stocking wanders from her right leg to the left and vice versa.
  • Badass Normal: She doesn't know magic, which makes her a rarity in Rabi Rabi Island. She more than makes up for it with her melee skills.
  • Boobs of Steel: While her bust is nowhere near as impressive as some characters, it's certainly more notable than Ribbon's, and Erina is the melee fighter of her team.
  • Close-Range Combatant: Her hammer and carrot attacks (aside from Hammer Wave) are short-ranged.
  • Drop the Hammer: Piko Hammer, one of Erina's weapons.
  • Even the Girls Want Her: Where to begin? Rumi immediately adores Erina's new human form and begins to show a more romantic attraction to her, Lilith comes on to her the moment she sees her, Miru talks about how she likes Erina's gifts more than anyone else's, Irisu has a very obvious crush on her, and let's not even get into the entire UPRPRC. By the time you see the true ending it's pretty heavily implied that she and Irisu become a couple.
  • Expy: Her design is effectively Reisen from the Touhou Project with purple eyes and a Playboy Bunny outfit.
  • Fashionable Asymmetry: A single thigh sock on her right leg.
  • Forced Transformation: She was originally a rabbit, but turned into a human. She wants to go back to being a rabbit.
  • Generation Xerox: Her and Noah's true form look uncannily alike. This may be by intent, since Noah's responsible for her transformation, and was planning on replacing her. In the ending, Erina ends up dressing and wearing her hair like Noah without even realizing it.
  • Happily Adopted: Since there's seemingly no way for her to return to normal, Rumi takes her in as a little sister by the normal ending.
  • Insists on Paying: Miriam offers her her items for free, but Erina insists on paying full price, no discount.
  • Last of Her Kind: Bunnies are practically extinct on Rabi-Rabi Island, leaving Erina as seemingly the only bunny on the island. It turns out there's actually two. Three if Erina convinces Keke Bunny to come to the village.
  • Leotard of Power: She wears a Playboy Bunny ensemble, but nobody knows why except for "It stands for rabbits, so it makes sense, right?"
  • Limit Break: After beating Erina the Forgotten Maiden, she unlocks the Bunny Memories, which she can channel during boss fights (which stops her HP from going below 1). If she successfully completes the channel, Erina is summoned to help her blast the target with a Fantastic Nuke, giving her invincibility frames while dealing massive damage that ignores defensive buffs (but varies by boss), before going on a long cooldown. The attack also drains some HP, making it unusable for Dodge Master achievements.
  • Little Bit Beastly: As a rabbit turned human(oid), she has rabbit ears and a tail.
  • Magically Inept Fighter: Lacks the capability to produce Bullet Hell like everyone else, but makes up for it with her close-range prowess.
  • Mistaken Identity: Most people who can't detect the polymorph magic on her just think that she's a UPRPRC member, even as she's under attack by actual UPRPRC members.
  • Official Couple: All but outright stated to be one with Irisu by the end of the game.
  • Playboy Bunny: Erina sports the uniform. Why? She'd also like to know.
  • Third-Person Person: She has a slight tendency to refer to herself when speaking, but it is not nearly as pronounced as with Ribbon.
  • Younger than They Look: As a human she looks to be a teenager, but she's in fact only six months old as a rabbit. Word of God estimates this to be around 16 years old in human years.

The Lively Fairy Seeking Freedom
Location: Spectral Cave
Variants: Delicious Food Ribbon
A fairy who Erina literally runs into. She joins Erina to search for her friends and gives her access to ranged magic.
  • Battle Theme Music: Get on With It, shared with Cocoa.
  • Beam Spam: Both as an ally and an enemy.
  • Cast from Money: The Egg Shooter, unlocked after getting enough Easter Eggs, can be charged and fired to deliver a devastating attack that consumes EN and your entire MP bar. Although the cost goes up as you collect more eggs, the damage does as well, until it's the most powerful attack in the game and also heals Erina a bit.
  • Crash-Into Hello: When she bumps into Erina, she mistakes the rabbit girl as a monster and attacks Erina.
  • Defeat Means Playable: She has to be fought by Erina, and then afterwards she becomes the game's primary source of ranged damage.
  • Embarrassing Nickname: Doesn't like being called "Ribi" by anyone other than her two fairy friends. Much to Ribbon's chagrin, Cicini starts using this nickname due to her association with the fairies.
  • Fairy Companion: She is a fairy and Erina's most loyal friend.
  • Fairy Sexy: Notably, her two friends are more conservatively dressed.
  • Gameplay and Story Segregation: You can rematch Ribbon using Ribbon herself, and the game will provide no comment on it.
  • Genre Savvy: Ribbon sheds this trait quite a bit before boss fights later on, commenting on the room's design and even mentioning that something's going to happen because of a change in music, as well as lampshading how everybody on the island seems to like fighting first and asking questions later.
  • Happily Adopted: Becomes part of Rumi's family by the normal ending.
  • Kill Sat: The Sunny Beam's boost attack resembles this, calling down delayed lasers of light to smite enemies for massive damage.
  • Limit Break: Given enough BP and MP, she can consume a huge chunk of it to cast a powerful Boost attack (depending on what magic type she currently has equipped) that often strikes enemies for massive damage and/or debuffs while giving Erina buffs. With the Max Bracelet, if she completely fills both bars, she can cast a Max Boost which is even stronger than the regular one. If she has the Cyber Flower equipped, then both of these can go on until she runs out of MP, even if her BP is fully drained.
  • Long-Range Fighter: In contrast to Erina's short-range hammer skills, Ribbon uses her magic primarily to hit enemies out of melee range.
  • Macross Missile Massacre: The Carrot Shooter, especially if it's used at low health.
  • Magic Missile Storm: Most of her Boost attacks, particularly her blue one. Her charged Healing Staff fires one of these as well.
  • Pint-Sized Powerhouse: She may be small, but she can nail down attackers from a distance.
  • The Red Mage: Uses offensive and healing magic, and her boost attacks can provide buffs.
  • Spanner in the Works: Her presence somehow complicates Noah's plans, to the point of her voicing how much she doesn't like her.
  • Status Effects: While most of her Boost attacks buff Erina, the Explode Shot will burn enemies for damage over time, while the Chaos Rod will curse enemies to make them take recoil every time they hit Erina.
  • Straight Man: Plays the role to Erina who does not often grasp human concepts (and common sense).
  • Stripperific: Her default outfit. She's the skimpiest of her circle of fairy friends, and when Erina asks why she's dressed like that, she dodges the question by asking why Erina is dressed like that.
    • Hilariously, her DLC Halloween costume (which was given to her by Lilith and is meant to be incredibly Stripperific) actually gives her a little more clothing than usual.
  • Superboss: Is one of the bosses to have a much harder Special variant fought after the postgame, humorously named "Delicious Food Ribbon". The fight dials all her stats and attacks through the roof, gives her multiple new moves, and gives her a Power Nullifier that drains your BP and Amulet charges on hit.
  • Third-Person Person: She basicly never says "I", only "Ribbon" when refering to herself.
  • Turns Red: In her SP fight, trying to use recovery items will not only heal her, but temporarily quadruple her damage output.
  • Wins by Doing Absolutely Nothing: It's entirely possible to encounter her before you get the hammer, which you would normally use to fight her. If this happens, her health inexplicably drains during the fight, turning it into an endurance battle (although on lower difficulties, she'll keel over before launching any major attacks).


The Heart of Rabi Rabi
Location: Rabi Rabi Town, Forgotten Cave II

Erina's owner and one of the key figures of Rabi Rabi town, who works to protect the peace within the town. She's searching for her sister Miru, who went missing as a result of the Stele.

  • Anti-Frustration Features: If fought on a low item percent run, she not only loses two of her six health bars, but gets the Instant Death debuff for her first 3, essentially leaving her with one health bar left. She's still no pushover, though.
  • Attack Drone: In combat, the four multicolored flower-like objects spinning around her execute all of her actual attack patterns; Rumi herself doesn't fire any bullets.
  • Attack Reflector: Once she loses a health bar, she'll gain 99 Reflect for the first attack during her next one, reflecting all damage taken above 99 while she has it.
  • Battle Theme Music: No Remorse, shared with Noah's second phase and Irisu's endurance phase.
  • Benevolent Boss: Is Erina's master, and her kindness to Erina clearly shows when they reunite. When Pandora mistakes their relationship as slavery when first told about it, Erina is quick to defend Rumi's honor.
  • Big Good: Regarded as the leader of Rabi Rabi, secretly protecting the peace in town.
  • Brainwashed and Crazy: The reason you have to fight her.
  • The Heart: Kind and friendly, especially to Erina, and she helps the heroic duo by deciphering the Stele and assisting in the teleportations done with it.
  • Heroic BSoD: She undergoes a rather amusing case of this in Chapter 8 when she thinks Irisu is doing something lewd with Erina.
  • Idiot Hair: Sports a small one, but she is not really an idiot.
  • Marathon Boss: She has six life bars, with an Unexpected Gameplay Change in between each health bar where you're briefly tackling a shooting-style fight similar to Lilith's second battle and an Attack Reflector that makes it so you can't burst her down right after said shooter. Fortunately, each of her individual bars has a lot less health than usual, to the point where a skilled player can burst one down in the span of a 1-2 attacks. She'll also heal you a bit between health bars.
  • Marshmallow Hell: Subjects Erina to this the moment she sees her human form.
  • Muggle: Subverted. She can't use magic except when brainwashed, but she is a telepath.
  • My Sister Is Off-Limits: She takes exception to Irisu when she thinks she's doing something lewd with Erina (who she sees as a little sister by this point).
  • Multi-Stage Battle: She has six health bars, in a game where most bosses only have one. The only other bosses to have multiple full health bars are Noah and Erina the Forgotten Maiden.
  • Nice Girl: Most residents comment on how kind she is.
  • Sdrawkcab Name: In Japanese, her name (ルミ) is the reverse of her sister's name, Miru (ミル).
  • Telepathy: She can communicate with people through this, as well as watch them from afar.
  • Unexpected Gameplay Change: Forces you into a flying shoot-em-up segment every time she loses a health bar, something you may have forgotten even existed given that it's used once prior in Lilith's fight.

Rabi Rabi's Only Merchant
Location: Rabi Rabi Town, Hall of Memory

The sole shopkeeper of Rabi Rabi town, who sells you items and upgrades in exchange for EN.

  • Adam Smith Hates Your Guts: Double Subverted. She tries to give Erina her items for free since they're friends, but Erina insists on buying them normally because she wants to be treated the same way as everybody else. She settles on giving you a discount, but it doesn't stop her from raising the prices of powerups as they are bought. If you don't have enough to pay for an item, she offers to give the item to you for free, but Erina won't actually let the player take the item without paying.
  • Amazing Technicolor Battlefield: The background pulses in every color of the rainbow during her fight.
  • Battle Theme Music: The Truth Never Spoken, shared with Noah's first form.
  • Brick Joke: When Erina sees the Bunny Slippers, Ribbon theorizes that they'll let her walk on air. When Miriam copies them, they let her do exactly that.
  • Damage-Sponge Boss: The possible result if you equip too many defensive badges during her fight, causing her to copy them and gain absurdly inflated HP and damage reduction as a result, as well as Super Armor if you have Armored equipped.
  • Ditto Fighter: Miriam's attacks and self-buffs change depending on the items you have. This makes her significantly easier in a 0% run, as most of the time she'll be unable to attack because you don't have the items she'd otherwise draw attacks from. She can also summon Degraded Boss versions of every boss in the game and even hijack control of Ribbon.
  • Final-Exam Boss: Her Super Attack summons illusions of the game's bosses one after the other, ending with Miru. Unfortunately for you, she draws this attack from the Bunny Amulet, the one item you're guaranteed to have.
  • Grand Theft Me: On the receiving end of this in the post-game by Noah.
  • Idiot Hair: Has a noticable one, but much like Rumi, she is not an idiot, just a little naive.
  • Muggle: One of only a few characters that can't use magic. This does not prevent her from becoming a powerful postgame boss, though.
  • Nice Girl: A kindly, placid shopkeeper who is always seen smiling and would gladly give you items for free if Erina wasn't so insistent on paying for them.
  • No Hero Discount: Zig-zagged. She's entirely willing to give Erina her goods for free, but Erina insists on paying like everyone else. She still insists on giving you a discount and will occasionally force Erina to accept an item for free, but the items she forces Erina to take aren't for sale in her shop, so she's still not getting her merchandise for free.
  • Outside-the-Box Tactic: How do you beat a boss who has all your equipment and copies all your badges? Get to her with as little equipment as possible. Failing that, dequip all your badges aside from the few she can't copy (or better yet, equip badges with tradeoffs that lower defense and health.) Also, she can't copy buffs given to you by the townspeople, so shelling out 25k for Miru to give you every buff in the game will let you roll right over her.
  • Power Copying: Not only are all her attacks modifications or representations of all the items you have, she also has a special Badge Copy buff that gives her a corresponding buff for (almost) every badge you have equipped. She can even mimic consumables like healing items or Cocoa Bombs to replicate their effects, with often disastrous results.

The Shy Childhood Friend
Location: Floating Library
Variants: Irisu in Wonderland

A girl on whose lap Erina wakes up following her transformation into a human. She seems to have an affinity with Erina.

NOTE: Many of the tropes regarding Irisu make her one big Walking Spoiler, so be wary.

  • Astonishingly Appropriate Appearance: Unlike every other bunny and bunnygirl cosplayer in the game, she has droopy ears, betraying her introverted nature.
  • Battle Theme Music: RFN - III, shared with Noah's last form. This changes to No Remorse in her endurance attack, or the title theme when fighting Irisu in Wonderland.
  • Beware the Nice Ones: She's one of the most quiet and adorable people on the island, but she's the True Final Boss for a reason. Her first action in her boss fight is to pepper Erina with some absolutely awful debuffs and lead with a bullet the size of the screen.
  • Big Bad: A separate Big Bad unrelated to the incidents with Noah. She's the leader of the UPRPRC. She's not really evil, though.
  • Book Ends: At the beginning of the game, Irisu is tending to a sleeping Erina. At the end, it's Erina who's looking after Irisu after she'd passed out from their fight.
    • She's also the very first character the player sees (not counting Erina) and the last one they fight (in the base game, at least.)
  • Childhood Friends: With Rumi and the previous Erina.
  • Counter-Attack: Once she hits her third phase, she'll gain the 300 Revenge buff that inflicts the Instant Death status if you hit her with an attack dealing over 300 damage.
  • Death or Glory Attack: Once her health is depleted, she casts Endurance, a buff that restores her health and makes her invulnerable to damage. On the flip side, her HP slowly depletes to zero as she unleashes her final attack, a very complex pattern of bullets.
  • Did They or Didn't They?: In Chapter 8, after Irisu confides in Erina that she created the UPRPRC, Erina happily forgives her and lays down on Irisu's bed, causing Irisu to lose control and pounce on her. Exactly how far they get isn't shown, but it is enough to drive Rumi into a Heroic BSoD and make Irisu deeply regretful of what she'd done (though given how Erina behaves towards Irisu in the ending, she didn't seem to mind).
  • Driven by Envy: She wanted to be Erina's master instead of Rumi. She created the UPRPRC so she could have a bunny of her own, and eventually even tries to use force to keep Erina by her side. She has green eyes, too.
  • Easily Forgiven: Erina's response to Irisu's confession that she was the one who created the UPRPRC is very nonchalant, and she happily forgives her for it despite all the trouble they've caused. Even after a delusional Irisu outright attacks her, Erina is happy to accept her back into the town and rekindle their bond.
  • Fairytale Motifs: Word of God is that her original name was Alice, and she has a White Rabbit theme going on. She even rides on a giant floating clock for some of her attacks, and her Special boss version as well as the name of her chapter are both literally named "Irisu in Wonderland".
  • Four Is Death: She can put a debuff on you that causes any attack that hits you to deal 4,444 damage, more than enough to kill you, considering your HP caps at a little over 1,000 HP.
  • Freakiness Shame: Her crippling loneliness and introversion are suddenly cast in a different light upon learning that her bunny ear "headdress"... isn't. She probably believed she was the only bunny girl in existence, and would've been right if it weren't for Noah kickstarting the plot with Erina's transformation.
  • "Get Back Here!" Boss: She spent most of her time either on the background or floating well above Erina's range.
  • Hidden in Plain Sight: If the UPRPRC had thought to look within their own ranks, they'd have found an actual bunny a lot faster.
  • I Just Want to Have Friends: Most of her actions make a lot of sense upon the reveal that she's a rabbit, as rabbits have been known to die if left alone.
  • Little Bit Beastly: Those rabbit ears aren't just a part of her headdress like everyone thinks. She really is a rabbit.
  • Life Drain: Permanently has the Health Absorb buff, which heals her whenever she damages you.
  • Nintendo Hard: Combined with Marathon Boss. She has a massive amount of HP, the Health Absorb buff to heal from damage she deals, frequently buffs her defense, can sometimes buff herself with attack reflecting buffs to dissuade you from hitting her, and most damningly of all loves to either float high in the air or outright in the background so you can't hit her, all while she bombards you with some of the most complex and difficult bullet patterns the game has to offer. And even when you eventually beat her down, she'll just get back up and force you into a final endurance phase for your troubles. As Irisu in Wonderland, all of the above gets turned up to eleven.
  • Not Evil, Just Misunderstood: Irisu has a deep affection for Erina (and bunnies in general). Unfortunately, she's cripplingly shy to the point that she runs away from her whenever she sees her. She also admits to being jealous of Rumi, as she wanted to be Erina's master instead. She formed the UPRPRC so she could have a bunny of her own, and admits that they took things too far.
  • Official Couple: All but outright stated to be one with Erina by the end of the game.
  • One-Hit Kill: If you do at least 300 damage to her with one attack while she has the 300 Revenge status (or get hit by her final shockwave in her opening attack), you'll get a temporary "Instant Death" status effect that kills you the instant anything hits you.
  • Power Nullifier: Once her second phase hits, she'll get the Power Absorb buff that lets her drain your MP, BP, and SP on hit, weakening your offensive abilities.
  • Rewatch Bonus: Much of what she says when she's tending to the sleeping Erina at the start of the game doesn't make a lot of sense until you've cleared the Post-End Game Content and realize that Irisu is initially mistaking Erina for another UPRPRC member.
  • Red Oni, Blue Oni: Blue introvert to Erina's red.
  • Shout-Out: Bunnygirl? Check. Dangerous introvert? Check. We know another character of that name and description.
  • Shrinking Violet: She constantly makes excuses to distance herself from Erina. Though it's less the fact that she's shy and more the fact that she's afraid Erina will hate her because she created the UPRPRC.
  • Stalker with a Crush: Word of God says she is always behind Erina.
  • Stuff Blowing Up: Her net somehow is able to create a huge explosion that would make Cocoa blush.
  • Superboss: Is one of the bosses to have a much harder Special variant fought after the postgame, "Irisu in Wonderland". Unlike the other BNA special bosses, Irisu's special fight is for the most part the same as her regular fight, except with all her attacks and stats dialed up alongside a heavily expanded arsenal of moves.
  • Theme Music Power-Up: As Irisu in Wonderland, instead of playing "No Remorse" for her final endurance phase, it'll play the title theme instead as she unleashes a far more dangerous endurance attack than her regular version had.
  • True Final Boss: Not only the boss of the final postgame chapter, but even getting to her requires beating almost all other bosses. She gets demoted to a Disc Two Final Boss if you have the Is the Order a DLC downloadable content.
  • Unusually Uninteresting Sight: No one really calls to attention the rabbit ears she wears, which is particularly notable since the only other people with rabbit ears are Erina and UPRPRC members and Keke Bunny and Noah. It's revealed later that they're part of her headdress. Or so everyone thinks at first...
  • Villain Forgot to Level Grind: Despite having more intricate attack patterns as difficulty increases, her final endurance phase remains the same across all difficulties bar its increased length and damage, with the same borderline Drone of Dread... unless you're fighting the SP version, in which case Irisu in Wonderland has a completely different and much harder endurance pattern set to the game's main theme song.
  • Villainous Breakdown: Played straight and then subverted. When her health is depleted to almost nothing, she stops firing magic at you and tries to jump at you with a net repeatedly out of frustration (without the explosions). However, soon after that, she regains all of her health and goes into her final survival attack.
  • Walking Spoiler: Most of her secrets remain that until the post-game.

The Poor Cat-Eared Inventor
Location: Starting Forest, Forgotten Cave
Variants: Poor Cat Cocoa, Cocoa Special 2019

An impoverished cat found in the Starting Forest and later under it. She initially mistakes Erina for a member of the UPRPRC and attacks her in the confusion. If you have the Before Next Adventure DLC, she becomes a playable character.

  • Assist Character: Her version of Bunny Strike summon Cicini and Syaro who then proceed to riddle the enemies with bullets and rockets. Funnily enough, although the game makes a point of only giving you Bunny Strike after both Cicini and Syaro are recruited, you can rematch either of them with it without issue.
  • Awesome, but Impractical: Her version of slide, the teleport bomb. It allows her to Sequence Break like nobody's business, skip environmental hazards by teleporting, and escape from being boxed in by bullet hell. But since it replaces the slide, leaving Cocoa with no way to make herself shorter, she has no way to dodge attack patterns that require sliding and must use the Bunny Amulet instead.
  • Badass Normal: Despite not having any magical powers, she still proves to be a challenge against Erina and Ribbon thanks to her personal stash of explosives. Not just that, she was one of three bosses to first get an SP version, as well as the only one to be truly Promoted to Playable where she can go toe to toe with the strongest magic user on the island and come on top.
  • Battle Theme Music: Get on With It, shared with Ribbon.
  • Big Sister Instinct: While they never actually interact in game, it's stated in the art book that she looks after Chocolate and Vanilla. Notably, they both use her inventions in their respective boss fights.

  • Cat Girl
  • Cast from Hit Points: Her version of the Super Carrot throws a powerful bomb instead. Using it twice in a row will trigger a screen-spanning explosion that brings Cocoa to 1 HP in exchange for dealing massive damage depending on how healthy she was when she used the attack. There's an achievement for taking down a boss using the self-destruct.
  • Deadly Lunge: Using Bunny Whirl as Cocoa instead has her pounce forward. Notably, this functions as a psuedo air-dash while being obtainable earlier, letting you potentially do some Sequence Breaking.
  • Difficult, but Awesome: In addition to her wide array of complicated movement techs, Cocoa's magic bombs are extremely powerful, but have a limited supply and require micromanagement to use to their full potential, in addition to the management of Cocoa's own attacks and Ribbon. However, if you figure out how to use them well, Cocoa can become a beast in combat whose mobility, versatility and damage output far surpasses Erina herself.
  • Expy: Cocoa of Is the Order a Rabbit?, though only by looks and name. Otherwise, she is more similar to Sharo: repelled by (fake) bunnies, cripplingly poor, very diligent and hard working, just to name a few.
  • Gameplay and Story Segregation: You can fight and interact with Cocoa or any of her variants...while also playing as her. To avoid confusion, the non-player Cocoa will be replaced by a purple Palette Swap.
  • Goggles Do Nothing: She wears goggles on her head, presumably to shield her eyes from the explosions, but there is not a single instance in the game where you see her wear it, even during fights where she should naturally most need it.
  • Guide Dang It!: Unlike Erina, Cocoa can't get the Speed Boost or Bunny Strike from Miriam. She instead has to find them in locations in the overworld that normally don't have anything when playing as Erina. While the Bunny Strike is in a rather obvious location right after Syaro's fight, the Speed Boost is in an obscure hidden room within Rabi Rabi Park that can only be entered using Cocoa's sliding bomb, meaning that you'd likely never have seen it as Erina.
  • Hammerspace: Her bag can hold an infinite amount of bombs.
  • Hates Being Touched: She has a tail, but she hates people touching it, so she keeps it hidden.
  • Heal Thyself: Cocoa's orange magic bombs will heal her for about 40 HP each, giving her one of the only forms of reliable and significant self-healing in the game.
  • Hold the Line: Her purple magic bomb generates a temporary field of magic a short time after being thrown. While in the field, Cocoa will not be able to deal damage, but will also be totally immune to damage herself.
  • Immune to Mind Control: The only member of the cast who can resist the bunny phenomenon.
  • Improbable Weapon User: She uses a pogo stick in lieu of Erina's hammer dive as a playable character.
    • She can also use her bombs' propeller blade as a means to damage enemies.
  • Long-Range Fighter: Melee combat is not her specialty. Her normal hammer combo does less damage than Erina and her other melee attacks are awkward to use and prone to send her right into enemies' bullets due to how jumpy they are. On the other hand, her wide array of bombs and Bunny Strike gives her fantastic ranged attack options. She can absolutely give bosses a taste of her own bullet hell.
  • Loophole Abuse: A few as a playable character.
    • The Bunny Lover buff used by several bosses halves damage dealt if the attacker is a bunny. Cocoa isn't a bunny, meaning she can attack them for full damage while Erina would normally be getting her damage slashed.
    • Because her basic attack is a projectile, Cocoa can completely bypass the Null Melee effect of the enemies and bosses in the System Interior.
    • During Miru's fight when you lose Ribbon, you can still pull out blue magic bombs with no problem.
  • Magically Inept Fighter: She herself has very little in the way of bullet hell. All she has is a small spread shot she can perform in the air. Her bombs, however, more than pick up the slack.
  • Mercy Invincibility: Or rather, a lack of it. As Poor Cat Cocoa, her attacks all inflict Mortality, which strips you of your immunity frames.
  • No Hero Discount: Justified. She's in poverty, and needs the funds from the bombs she sells you.
  • No-Sell: For reasons unknown, she's immune to the bunny phenomenon.
  • Not Brainwashed: In her second boss fight, the bunny phenomenon takes place and she appears to be brainwashed by it, prompting a boss fight. After the fight she reveals that it had no effect on her and she was just pretending to be brainwashed to create an excuse to try out her new weapons.
  • Perpetual Poverty: Allegedly from constantly needing to upgrade her bombs.
    Thank you for purchasing this artbook.
    Your kindness has provided Cocoa with a carrot.
    Another day, another meal.
  • Promoted to Playable: Becomes a playable character in the Before Next Adventure DLC.
  • Pyromaniac: Her love for fireworks and explosions is also her source of perpetual poverty, since she spends all her money on material and research.
  • Recurring Boss: She's fought twice: First in Starting Forest as a Warm-Up Boss, then later in the Forgotten Cave as a proper fight with her new weapons.
  • Sequence Break: Her superior mobility options allows her to sequence break harder than Erina did, most notably her versatile teleport slide and her Bunny Whirl being a psuedo-airdash.
  • Smart Bomb: Her Cocoa Bombs, which she sells to Erina. Using one inflicts massive damage to all on-screen enemies.
  • Status Effects: Her blue and green magic bombs can inflict Defense Down and Attack Down respectively, making her the only character able to inflict enemies with them without the use of town buffs.
  • Stuff Blowing Up: She attacks exclusively using explosives.
  • Superboss: Is one of the bosses to have a much harder Special variant fought after the postgame, "Poor Cat Cocoa". In addition to having significantly higher stats and an expanded moveset of more deadly attacks, she's considered to be one of the hardest bosses in the entire game due to her unique ability to bypass Mercy Invincibility.
    • As an Easter Egg added for the 2019 new year, the fight can be made even more challenging if you don't attack her SP version for the whole duration of her first attack. In response, she'll power up into "Poor Cat Cocoa 2019" and gain a slew of new attacks.
  • Teleportation with Drawbacks: Teleportation to a set location. Picking up the Sliding Power with Cocoa doesn't give her a slide. Instead, she summons a small bomb that runs along the ground. Doing the slide input again will cause Cocoa to teleport to its location.
  • The Tramp: Despite being poor, she never looks bad and always provides explosives for Erina to use in battle.
  • Video Game Cruelty Potential: The cocoa bombs you buy from Cocoa can be used to do meaningless damage to residents of Rabi Rabi Town and temporarily destroy buildings. If you do it to Cocoa, she takes a billion damage and stays in her taking cover animation and you get an achievement called "NYAAAAN".
  • Wounded Gazelle Gambit: In her second boss fight, she pretends to be under the influence of the bunny phenomenon so that Erina and Ribbon try to snap her out of non-existent brainwashing, giving her the ideal chance to try out her new weapons. Erina and Ribbon aren't pleased once they figure this out.
  • Wrench Wench: Being poor, all of her tools are hand-made.

The Sorceress of the Tundra
Location: Azure Snow Land
Variants: Illusion Rita, The Sorceress of the Tundra, Rita

A magic user found in Azure Snow Land. She attacks Erina after falling under the influence of the bunny phenomenon. She is one of the few characters who can sense Saya easily and she acts as her mentor.

  • And Now for Someone Completely Different: You get to play as her briefly in a side chapter.
  • Barrier Maiden: One of three, along with Ashuri and Pandora, responsible for keeping the barrier around Rabi Rabi Island up.
  • Brainwashed and Crazy: Why she attacks Erina. Word of God states that they couldn't think of a reason Rita would attack Erina, so they made up the bunny phenomenon as an excuse.
  • Chainmail Bikini: When approached in town, Rita mentions that fewer clothes conveys more protection as if it were obvious. She still recommends that Erina change into some armor, despite not wearing much of it herself.
  • Combat Hand Fan: Her boss and playable versions both use blue hand fans for melee and throwing attacks.
  • Damage-Sponge Boss: Rita's Sorceress of the Tundra iteration has one of the highest HP values of any boss in the game alongside damage reduction, making her take very little damage from conventional attacks. However, destroying enough of the snowflake bullets she spawns will deal massive bursts of damage and temporarily nullify her damage, the former of which is a Percent Damage Attack and will tear off a huge chunk of her health bar regardless of her level, making it likely your main source of damage in the fight. Since the number of snowflakes to trigger this increases over the course of the fight, the battle eventually boils down to a Puzzle Boss where you have to figure out the best ways to destroy as many snowflakes as possible.
  • Heavy Sleeper: Heavily implied. She mentions sleeping for 12 hours once during the later chapters.
  • An Ice Person: Found in an icy area and fights with ice magic.
  • Leitmotif: Melting Point, which is not shared with any other boss.
  • Leotard of Power: Wears a blue leotard and sports some very powerful magic attacks.
  • Miko: Wears typical shrine maiden sleeves and seems to have a spiritual advisor role for the town, alongside her powerful magic.
  • Ninja: Partly. She's considered an ice witch, but a lot of her moves are very ninja-like. She throws icicle bullets like kunais, can dive kick, lunging kicks across the screen, and the way she handles her fan weaponry resembles that of various Asian martial arts, among others. Notably, she's one of the only bosses in the game that makes liberal use of direct physical attacks.
  • Public Domain Soundtrack: Her original boss theme, "Midstream Jam", is actually a royalty-free track available for use in doujin games. It was later replaced with an original track for her, "Melting Point".
  • School Swimsuit: Her costume was more similar to one in her early sketches.
  • Senpai/Kōhai: With Saya. Rita's the sempai who always guides and encourages Saya whenever she struggles.
  • Superboss: Is one of the bosses to have a much harder Special variant fought after the postgame, "The Sorceress of the Tundra, Rita". The fight significantly buffs her stats, attack patterns, and move arsenal, while also adding a gimmick where Ribbon must destroy snowflake bullets to pierce her defense and a sudden platforming section halfway through.
  • Unexpected Gameplay Change: Roughly halfway through her SP battle, her name will change to "Before the Mysterious Disappearance" and she'll force you into an ascending platforming sequence where you have to climb up floating platforms while Rita rains hell on you. This is then repeated all the way back down.

The Girl With No Presence
Location: Evernight Peak, Windy Ravine
Variants: Pillar

A girl found on Evernight Peak and a close friend to Rita. She laments her meek presence as she is often ignored by those around her.

  • Battle Theme Music: Kitty Attack, shared with Vanilla, Chocolate and Seana.
  • Blessed with Suck: Her choice to specialize in wind magic is responsible for her weak presence.
    • After being defeated by Erina she attempts to avert this by learning magic that would make her more noticeable, though when she tries it on Erina, it enlarges her. The game's comment is akin to "how is this useful?"
    • It's useless because it immediately expires when Erina goes out of town. Otherwise, it would have actually been useful because the Giant buff grants additional attack and defense in exchange for speed.
  • Blow You Away: A wind user who can fly and create tornadoes to attack.
  • Cannot Spit It Out: It is pretty obvious she loves Rita, but cannot ever admit it. Her shy personality and small presence do not help when people constantly talk over her, causing her to hold back even more. She is positively delighted when Rita offers to study new magic together with her.
  • Hidden Depths: She's actually a pretty good painter who practices a lot in her spare time. It's just that she seldom has anyone to share her hobby with.
  • Invisible to Normals: Her presence is so weak (later revealed to be because of her wind magic) that even in plain sight, most characters tend to not even be able to detect her presence. Only a few characters can interact with her on a regular basis, and even then, there's a chance she still gets ignored.
  • Senpai/Kōhai: With Rita - Saya's the kouhai who always looks up to her, as Rita was the first person to pay attention to her without Saya actively trying to stand out. You even get an achievement called "Senpai Noticed" for defeating Saya while playing as Rita in the boss rush.
  • Shout-Out: One of her first attacks is a barrage of miniature tornadoes moving across multiple levels and then slowly moves towards the player, a reference to Airman's attack from the second Mega Man game. It even goes backwards if you try to jump behind her after she launches them!
  • Shrinking Violet: Inverted. She tries to stand out but is unable to due to her choice of magic.
  • Turns Red: Trying to use recovery items in her Pillar fight will not only make her restore HP, but also temporarily turn her giant and invulnerable.
  • Upgraded Boss: Is one of the bosses to have a much harder Special variant, humorously named "Pillar" after what Ribbon mistakes her for in her original encounter. The fight massively dials up all her stats and patterns, while expanding her arsenal to make use of the four pillars in her map. What stops her from becoming a Superboss like the other Special bosses is that defeating Pillar Saya is mandatory for advancing through Chapter 9.
  • Wind Is Green: Deliberately designed around this trope, as explained by the artbook.

The Other-Worldly Genius
Location: Spectral Cave, Hallow's Graveyard
Variants: Halloween Cicini

A girl found in the Spectral Caves. Erina encounters her as she is preparing to experiment on Ribbon's friends.

  • A-Cup Angst: Has expressed aggravation regarding Syaro's development on multiple occasions.
  • Battle Theme Music: High-Tech Duel, shared with Syaro and the last encounter in System Interior II.
  • Childhood Friends: With Syaro.
  • Child Prodigy: She first appeared on the island while conducting research with her father and is a brilliant scientist despite her apparent age.
  • Clarke's Third Law: Cicini insists that her attacks and abilities are purely non-magical technology. Ribbon can't tell the difference.
  • Does Not Like Shoes: To go along with her "shut-in" look. She does wear shoes as part of her Halloween outfit, though.
  • Easily Forgiven: By Ribbon's friends, Lilli and Pixie, for capturing them for research. Ribbon even starts to get jealous that they're enjoying spending time with her.
  • Genki Girl: No matter what, she is always full of energy and curiosity for the things around her.
  • I Choose to Stay: Decides to stay behind with Syaro at Rabi Rabi Island and renew the seal, knowing that if she were to ever return home she'd be interrogated about where she'd been.
  • Long-Range Fighter: While Erina and Rita are mostly melee fighter, all her attacks are projectiles.
  • Mad Scientist's Beautiful Daughter: Her scientist father forced her to focus on her studies and research, to the point that she wasn't even allowed to see her childhood (and only) friend Syaro. Cicini eventually steals her father's latest invention out of curiosity and concern, which leads to her and Syaro getting transported to Rabi Rabi Island.
  • Mission Control: She plays this role twice in the game, once to lead Erina and Ribbon to the main system of the Exotic Laboratory to prevent it from going idle, and then again to assist Erina and Ribbon in freeing Syaro from said system.
  • Not Allowed to Grow Up: Claims that Syaro "magically stole all her nutrition" while they were growing up, which is why she looks younger than she is. Whether she's actually serious or just making a joke is not touched on.
  • Older Than They Look: She's around Syaro's age despite looking much younger and behaving much less seriously.
  • Only Known by Their Nickname: The artbook reveals that Cicini isn't actually her real name. Whether it's a nickname or something else is never elaborated on.
  • Roboteching: Her signature beam attack and her playable aerial attack does this.
  • The Shut-In: Her labcoat without pants or shoes look gives her the appearance of a young woman who's so obsessed with her research she doesn't particularly care about physical appearances. She stops acting like much of a shut-in once she befriends Erina, but still looks the part.
  • Trapped in Another World: Due to a scientific mishap, she and Syaro wound up transported between worlds to Rabi-Rabi Island. Though as it turns out, she never actually left Earth.
  • Wake-Up Call Boss: Avoiding some of Cicini's attacks is not immediately intuitive, particularly her somersault beams. On top of this, she's considerably harder than Rita, the other boss recommended for the early game. This is on top of her computer serving as a small mini boss before you fight Cicini proper. She'd be a much easier boss with better items and a double jump; unfortunately, Cicini blocks access to many of the movement items, including said double jump, so it's highly advisable to fight her early, despite her difficulty.
  • You Can't Go Home Again: Her research into the island leads her to this conclusion.

The Maid Imitating AI
Location: System Interior
Variants: Glitched Syaro Returns

A girl who became trapped in the System Interior of Cicini's laboratory. She is identified by the system as one of its robot maids and is forced to attack intruders.

  • Achilles' Heel: As a side effect of her Null Melee buff, she takes significantly higher damage from Carrot Bombs. Dropping a few on her when she's standing still will usually tear a good chunk out of her health bar. Even in her far stronger SP version, she still retains this weakness, making them a useful tool against her.
  • A.I. Is a Crapshoot: The system identifies her as one of the robot maids and compels her to attack Erina.
  • Armored But Frail: Syaro has lower HP than any boss fought at the same level, which is circumvented by her immunity to Erina's more damaging melee attacks. Even in her SP battle, she still has much less health than many other bosses at her level (especially her 3 BNA cohorts, who are ridiculous Damage Sponge Bosses), but still manages to become a Marathon Boss due to her Barrier Change Boss mechanics and titanic damage reduction.
  • Battle Theme Music: High-Tech Duel, shared with Cicini and the last encounter in System Interior II.
  • Barrier Change Boss: In her second battle as Glitched Syaro Returns, she'll periodically cycle through different "modes", each of which is weak to one of the types of magic, forcing you to repeatedly switch through them on the fly in order to do meaningful damage to her. There's an achievement for doing it with only blue and rainbow magic.
  • Big Sister Instinct: Not related but she is very protective of Cicini.
  • Boobs of Steel: The most endowed of the cast. She is also invincible to all physical attacks, and the strongest playable character.
  • Brainwashed and Crazy: Less "crazy", but the System Interior mistook her for a real Robot Maid and controls her during her boss battle. She does not seem to remember the fight, either.
  • Childhood Friends: With Cicini.
  • Energy Weapon: One of her attacks has her use a firearm of sorts to fire a pretty damaging laser beam that recoils her backwards. Her playable self use this as her default attack. It shreds bosses in seconds.
  • Hates Being Touched: After the battle, Erina and Ribbon try to touch her and thus find out she is not like the Robot Maids encountered so far. She immediately reacts with revulsion and complaints. Notably, despite this, she's the one who glomps Cicini once reuniting with her.
  • I Choose to Stay: Decides to stay behind with Cicini at Rabi Rabi Island and renew the seal, knowing that if she were to ever return home she'd be interrogated about where she'd been.
  • Long-Range Fighter: While Erina and Rita are mostly melee fighters, all her attacks are projectiles.
  • Loophole Abuse: Despite Null Melee normally making her immune to basic attacks, it doesn't actually nullify Cocoa's basic attack...because her basic attacks are ranged. She shares this distinction with the enemies in the System Interior, meaning Cocoa can freely attack any of them to deal damage.
  • Macross Missile Massacre: One of her main attacks let out a series of colored missiles of varying speed at your direction. Her playable self can do this as well.
  • Marathon Boss: Glitched Syaro Returns has damage reduction that starts off at nearly 100% and gradually decays over the course of the fight, forcing you to fight an endurance match.
  • Meido: Subverted, she is not a Robot Maid like the rest encountered. She mainly dons the uniform and addresses Cicini as "master" due to their childhood, as it was the only way they could spend time together, and it simply stuck.
  • No-Sell: Like all other enemies in the System Interior, she has the Null Melee buff that makes her immune to melee attacks, but gives an Achilles' Heel to Carrot Bombs. This doesn't apply to the illusion of her in the Forgotten Cave II, where she can be damaged with any attacks.
  • Ridiculously Human Robots: Subverted, she dresses like Cicini's robot maids in order to remain close to her after Cicini's father forces her to focus on research. Although she exhibits many unusual traits more reminiscent of a humanoid robot, she's confirmed to still be 100% human.
  • Spell My Name with an S: "Sharo" on the loading screen.
  • The Straight Man: The more serious of the science duo, who often has to rein in Cicini's hijinks.
  • Superboss: Is one of the bosses to have a much harder Special variant fought after the postgame, "Glitched Syaro Returns". In addition to massively buffing her stats, attacks, and arsenal, as well as changing the arena she's fought in early on in the fight, it turns the fight into a borderline survival boss by turning her into a Barrier Change Boss whose nearly invincible damage reduction only drops after surviving her for long enough.
  • Trapped in Another World: Due to a scientific mishap, she and Cicini wound up transported between worlds to Rabi-Rabi Island. Though as it turns out, she never actually left Earth.
  • Wave-Motion Gun: She can use a laser cannon to launch one of these in her battle and as a playable character.
  • You Can't Go Home Again: Like Cicini, she eventually faces the reality that they cannot go back home for the sake of protecting Rabi Rabi Island, but she is alright with that as long as she can be with Cicini.

The Oblivious Underwater Singer
Location: Natural Aquarium, Rabi Rabi Town

A girl who built a sound studio in the Natural Aquarium to realize her dream of becoming an Idol Singer. Her performances become so rowdy that her audience is forced to defend themselves.

  • Apparently Human Merfolk: Supposedly a mermaid, but looks no different than any other human character.
  • Battle Theme Music: Kitty Attack, shared with Vanilla, Saya and Chocolate.
  • Brown Note: Erina is so moved (or deafened) by Seana's second performance that she's inflicted with the Fatigue debuff (which lowers your speed and jump height) for the entire fight.
  • Dreadful Musician: Not in the usual sense. She's actually a very talented singer. The problem is that when she sings Bullet Hell goes flying.
  • Hold the Line: Her second battle has you unable to harm her normally, forcing you to dodge her attacks as her health slowly burns away.
  • Idol Singer: She dreams of becoming one. She does eventually get to perform for everyone in Rabi Rabi Town, only for all of them to flee once the bullets start flying.
  • Obliviously Evil: She doesn't even realize that her singing is dangerous, and complains when you interrupt her performance.
  • Placebo Effect: Cicini eventually provides her with a new invention that helps Seana with her fear of leaving the water by making her feel like she's still underwater. This "invention" is just a normal innertube that Syaro bought her, which is instantly destroyed once Erina has to restrain her concert.
  • Recurring Boss: She's fought once normally, and then a second time as an Endurance fight.
  • Sirens Are Mermaids: She doesn't have any mermaid traits, but she is a singer who lives underwater, who's singing turns out to be deadly.
  • Spell My Name with an S: Like Kotri, she gets an alternate romanization of her name on the loading screen: Shiina. This also reveals the pronunciation of her name: Seana, rather than "Se-a-na", as you might otherwise assume.
  • Underwater Boss Battle: Her first boss fight is the only one to take place underwater for its entirety. While Erina and Ribbon have Super Not-Drowning Skills, it's not recommended to fight Seana without getting the Water Orb to de-hinder movements. There is an achievement for winning this fight without getting said Orb first, though.
  • Walking Swimsuit Scene: Justified, as she's a mermaid.

    Lilli and Pixie 
Location: Windy Ravine

Ribbon's fairy friends, who were captured by Cicini for research purposes. After being freed by Erina, they help her find magic users for the Stele. In Is the Order a DLC, they head to the Windy Ravine to learn magic from Saya, only to go out of control.

  • Amazing Technicolor Battlefield: In their boss battle, the background resembles a long-exposure picture of a starry sky, complete with rainbow-colored streaks of light.
  • Assist Character: When Erina has the Fairy's Flute active, being brought below 20% HP will summon Lilli and Pixie for a short time, healing Erina and blasting enemies for high damage. This has a long cooldown and doesn't work in certain locations, such as the System Interior or the Warp Destination.
  • Damsel in Distress: They're initially found captured by Cicini, who wanted to do research on them. After clearing up the misunderstanding, they hit it off surprisingly well with her.
  • Dual Boss: They fight you together in their boss battle, often using simultaneous attacks that coordinate with each other.
  • Quest Giver: Will frequently update your objectives markers on the map as you progress through the game, telling you where to find magic users to fight and recruit.
  • Those Two Guys: They're usually never seen without each other.
  • Took a Level in Badass: In Is the Order a DLC, they go from two portrait-less characters who only give you hints, to a Dual Boss and the second hardest mandatory encounter in the game.
  • Video Game Cruelty Potential: Not only can you beat the game without ever saving them, there's even an achievement for it.

The Older Cat-Eared Sister
Location: Rabi Rabi Ravine, Hallow's Grave
Variants: Halloween Cat Chocolate Special

The older of the Cat Girl sisters. She runs into Erina while searching for her sister, mistaking her for the UPRPRC and attacks, believing her involved in Vanilla's disappearance.

  • Battle Theme Music: Kitty Attack, shared with Vanilla, Saya and Seana.
  • Big Sister Instinct: Her reason for attacking Erina, believing that she's responsible for Vanilla being missing.
  • Cat Girl
  • Dual Boss: Her original boss design was intended to be a fight together with her sister. This concept is later realized in the Halloween DLC.
  • Expy: Of Chocola from Nekopara. Both are black-colored catgirls and the older, more outgoing sister of their sisterly duo.
  • Marathon Boss: Their Superboss battle in the Halloween DLC. You fight against 2 bosses with insanely high stats (especially HP), lots of attack patterns, and constant movement.
  • A Wizard Did It: Her artbook profile says that her strapless top is held up by magic... and made of paper.

The Younger Cat-Eared Sister
Location: Sky-High Bridge, Hallow's Grave
Variants: Halloween Cat Vanilla Special

The younger of the Cat Girl sisters. She is found at the top of the Sky Bridge. She is immediately suspicious of Erina and attacks her in self-defense.

  • Battle Theme Music: Kitty Attack, shared with Chocolate, Saya and Seana.
  • Cat Girl
  • Dual Boss: Her original boss design was intended to be a fight together with her sister. This concept is later realized in the Halloween DLC.
  • Expy: Of Vanilla from Nekopara. Both are white-colored catgirls and the younger, more reserved sister of their sisterly duo.
  • Marathon Boss: Their Superboss battle in the Halloween DLC. You fight against 2 bosses with insanely high stats (especially HP), lots of attack patterns, and constant movement.
  • A Wizard Did It: Her artbook profile says that her strapless top is held up by magic... and made of paper.

The Older Twin in Winter Clothes
Location: Aurora Palace

A bear who occupies the ruins of the Aurora Palace with her younger sister. She is suspicious of Erina's intentions in convincing her to go to Rabi Rabi town but eventually agrees if Erina plays with her.

  • An Ice Person: Like Rita, all her attacks are ice-based, with snowflake projectiles and even snowflake-shaped bullet patterns, as well as the ability to create big snowballs to use against Erina. She can also submerge the entire arena in water temporarily, slowing down Erina unless she has the Water Orb.
  • Battle Theme Music: Bounce Bounce, shared with Nixie and Keke Bunny.
  • Beary Friendly: Unless you have to fight her, then...
  • Dual Boss: Like with Chocolate and Vanilla, her boss fight was to be together with her sister.

The Younger Twin in Winter Clothes
Location: Icy Summit

The younger of the bear sisters, Erina encounters her on the Icy Summit. Nixie attacks Erina after eating the local plant life which, as Nieve later explains, impairs the eater's reasoning.

  • An Ice Person: Similar to her sister, her attacks are ice based, despite the fact that the ice she uses is red rather than her sister and Rita's blue. For some reason.
  • Battle Theme Music: Bounce Bounce, shared with Nieve and Keke Bunny.
  • Beary Friendly: Unless you have to fight her, then...
  • Big Eater: Trying to eat a local plant that happens to look like a particular type of sweets gave her trouble, resulting in the battle with Erina.
  • Dual Boss: Like with Chocolate and Vanilla, her boss fight was to be together with her sister.
  • Red Oni, Blue Oni: She's the quieter blue, despite her red outfit.
  • The Stoic: Compared to her sister, she isn't very talkative. While this can be handwaved as her being under the influence of the plants she just ate, even after she's brought back to normal, she's relatively quiet.
  • Sweet Tooth: When you find her, she's trying to eat the nearby candies in the arena. Unfortunately said candies are actually plants that drive her to attack you.

The Graceful Dancer
Location: Rabi Rabi Park (green), Floating Graveyard (blue), Volcanic Cavern (red)

A dancer and close friend of Irisu. She confronts Erina, suspecting she is bullying the retreating Irisu.

  • Attack Drone: In battle, she uses six triangular objects to fire bullets and lasers from different angles. When she's not attacking, they orbit around her.
  • Battle Theme Music: Brawl Breaks, shared with Ashuri.
  • Belly Dancer: She utilizes different types of dance in combat to cast powerful spells. Also, when she changes dance styles, her hair colour changes too.
  • Bully Hunter: The whole reason she attacks you the first time is because she thinks you're bullying her friend Irisu, who runs away every time she sees you. After she learns the truth from Irisu, she becomes suspiciously friendly towards you, and outright denies having ever been angry with you in the first place.
  • Curtains Match the Window: When her hair changes color, her eyes do too, but only in the sprites. In the CG art her eye color remains the same.
  • Geo Effects: Her magic in each battle matches the main color of the environment she's fought in.
  • Glass Cannon: Her red form is considered a late-game encounter, but she has health as if she was an early game boss. However, she makes up for it by using attacks you generally can't react to (forcing you to memorize), incredibly high damage output, and the ability to stick the massively damaging Burn debuff on you if you haven't defeated the Rainbow Crystal to unlock the Tough Skin badge first.
  • Lava Adds Awesome: In her third and final boss fight in the Volcanic Caverns, she can cause lava to flow across the bottom of the room, inflicting damage if it touches you.
  • Little Bit Beastly: Has fox ears and fitting tail.
  • Master of None: She knows many different types of magic, but doesn't excel in any of them, something she's upset by.
  • Playing with Fire: In her third battle, all of her attacks inflict the Burn debuff, and her special attack makes lava rise up from below the room.
  • Power Dyes Your Hair: Her dances use different magic types and change her hair accordingly.
  • Recurring Boss: She needs to be fought 3 times in order to recruit her. When fighting her illusion in the Forgotten Cave, she can freely switch between her 3 forms at random.
  • Secret-Keeper: It's heavily implied that, just before your second fight with her, Irisu confides in her that she's the leader of the UPRPRC. She keeps it secret and fights Erina to stall her so that Irisu can get away from her. Unfortunately, she's not very good at it, as by the end of the game, Ashuri, Saya, and Rita also know, having overheard the truth.
  • Spell My Name with an S: Her artwork on the loading screen gives her name as Kotori, in keeping with how her name would be romanised if written in Japanese kana (コトリ Kotori). Probably enforced to add to the Animesque feel of the game, as the developer GemaYue is not actually Japanese, but Taiwanese.

The Princess of the Pyramid
Location: Golden Pyramid
Variants: Illusion Pandora

An seemingly immortal girl who claims to be an ancient princess. She attacks Erina after she intrudes into the depths of the pyramid and (seemingly) disrespects Pandora.

  • Magic Staff: Her Chaos Rod (which you can pick up later), which can create slowing fields and fire off her magic attacks. She even uses it as a throwing weapon for several of her attacks.
  • Really 700 Years Old: She's lived for several hundred years.
  • Stripperiffic: Probably the most notable example. At least Kotri and Seana justify it by being a dancer and a mermaid, respectively. Pandora has no excuse.
  • Who Wants to Live Forever?: She's immortal, though she isn't all that enthusiastic about it, pointing out that she'll outlive everyone she knows, and possibly already has at least once.
  • Wistful Amnesia: Possibly owing to her long age, she's the only character that seems to remember some events that Noah had wiped from everyone's memories three years ago, though she's just as confused as to why she knows these things.

The Sorceress With a Lust for Research
Location: Rabi Rabi Beach, Golden Riverbank
Variants: Lust for Research Ashuri

A witch encountered on Rabi Rabi beach and the Golden Riverbank. She immediately takes an interest in Erina, demanding she let her experiment on her.

  • Barrier Maiden: One of three, along with Rita and Pandora, responsible for keeping the barrier around Rabi Rabi Island up.
  • Battle Theme Music: Brawl Breaks, shared with Kotri.
  • Cute Witch: A teenage witch with cutesy lasers and stars, and complete with conical witch hat.
  • Expy: Of Marisa Kirisame, what with the love for lasers, stars and explosions, and generally being a Cute Witch.
  • Naughty Birdwatching: Possibly. The (non-canon) 4koma leaves no doubt.
  • Outdoor Bath Peeping: Ribbon blames her for doing this while she was taking a bath.
  • The Peeping Tom: She insists that she was only spying on Ribbon for research purposes. Ribbon isn't buying it.
  • Recurring Boss: She's fought once in the tutorial as a Warmup Boss, and then one more time as a fully-fledged boss.
  • Superboss: Is one of the bosses to have a much harder Special variant fought after the postgame, "Lust for Research Ashuri". The fight dials all her stats and attacks through the roof, gives her multiple new moves, and gives her a Power Nullifier that temporarily disables Badges, drains MP, and slows your movement on hit.
  • Wake-Up Call Boss: Her second boss fight is meant to be tackled later in the game, but it's rather easy to get to her much earlier. Needless to say, if you bump into her shortly after Cicini sends you to find Syaro, you're going to be in for a nasty difficulty spike. If you're the type that likes to explore, you may encounter her early in the game when she's considered a mid-game boss. It funnily also serves as a kind of punishment for not listening to Cicini when she tells you to go the other way.

The Embodiment of the Green Forest
Location: Dark Starting Forest

A woman who inhabits the upper regions of the Starting Forest where she became trapped after merging with the plant life. She attacks Erina under the influence of the bunny phenomenon.

  • Battle Theme Music: Full On Combat, shared with Lilith and Pandora.
  • Darker and Edgier: Her short backstory happens to be the most depressing one. She says she came to the deep part of the forest to commit suicide. And while she didn't die due to the plants overtaking her, she's still become very mentally unstable that she considers her forest entrapment a much better view of life. One has to wonder what exactly happened to her to make her want to do this, especially considering how Rabi Rabi Island has a generally easy-going society.
  • Godiva Hair: She technically doesn't wear any clothes at all; her upper-body modesty is preserved only by a pair of strategically-placed locks of hair.
  • Green Thumb: Her abilities revolve around creating and manipulating plants, with her battle having her summon many vine and flower-like constructs made of bullets.
  • Plant Person: A plant girl, but she was not always one.
  • Token Adult: Compared to the rest of the cast who are teens and pre-teens, she and Lilith are at least nearing their twenties. She mentions that she has spent significant time in the forest.
  • Transflormation: It is not exactly known why, but she was used to be a human before being turned into a plant girl.
  • Wounded Gazelle Gambit: Pretends that she's being attacked in order to lure people to her. Fortunately, all she wants to do to Erina when she shows up is talk to her (at least until the Bunny Phenomenon happened.)

The Seductive Night Hunter
Location: Sky Island Town

A succubus that frequents Sky Island Town. She confronts Erina after she refuses her advances.

  • Battle Theme Music: Full On Combat, shared with Pandora and Arurarune.
  • Clipped-Wing Angel: Claims she's even tougher in the air, but if you have any experience with Bullet Hell shmups you'll be way more in your element during the Unexpected Shmup Level and can take her down pretty quickly.
  • Even the Girls Want Her: There are a few girls in the Sky-Island Town that want to get spirited away by her.
  • Fade to Black: Lilith has an attack that results in this. She stuns Erina with heart projectiles, then walks up to her and does...something to her while the screen fades to black and Erina takes three hits for 69 damage each. Notably, this is one of the very few attacks whose damage doesn't scale with level (thus making it especially dangerous in a 0% run).
  • Fixed Damage Attack: The stun attack is one of the few attacks that deal a fixed amount of damage instead of scaling to the boss' level.
  • Hot as Hell: She's notorious for spiriting away cute girls and comes on to Erina the moment she lays eyes on her. Fitting with the trope, she replenishes her mana by sleeping with women, and if you recruit her early enough to have her speak during a stele event, she implies she's been quite busy in Rabi Rabi town given the amount of mana she has to charge the stele.
  • LOL, 69: Her Fade to Black attack deals three hits for 69 damage each.
  • Lovable Sex Maniac: invokedEasily the gayest character in the game, which is saying something. She comes on to Erina immediately upon seeing her, and once she moves into Rabi Rabi town she considers it a "new hunting ground" for cute girls.
  • Multi-Stage Battle: She must be fought twice, first on foot, and then in an air battle reminiscent of a shoot-em-up game, with a long area with several enemies in between.
  • Projectile Kiss: Throws kisses and hearts during battle. Notably, they initiate a very powerful attack on contact.
  • Stripperiffic: Several characters are already this, but Lilith takes it up a notch, what with her being a succubus, with a translucent nightgown. She has an alternate outfit that's effectively lingerie, the top half of which gives her some pretty generous underboob.
  • Token Adult: Compared to the rest of the cast who are teens or even pre-teens, she and Aruraune are at least nearing their twenties.
  • Unexpected Shmup Level: The second of two battles with her is a Horizontal Scrolling Shooter rather than the usual platforming format.
  • Vapor Wear: The only thing she wears under that nightie is a bra and panties. The nightie is destroyed during the second fight with her.
  • Winged Humanoid: A pair of large bat wings, as befitting a demon.

     Keke Bunny
From Plurk
Location: Plurkwood

A strange bunny residing in Plurkwood.

  • Battle Theme Music: Bounce Bounce, shared with Nixie and Nieve.
  • Big Eater: She sometimes eats her own minions. Her Rabi-Rabi Town event is even just her sending Erina and Ribbon over to Plurkwood. Why? To get her more food, naturally.
  • Extreme Omnivore: Seems capable of eating just about anything, her own minions included.
  • Flunky Boss: Can summon the various creatures of the Plurkwood in her attack pattern.
  • Grievous Harm with a Body: Some of her attacks involve throwing a bunch of Meaty Bones at you, which explode into chunks when they hit the ground.
  • Guest Fighter: She's a mascot for Plurk.
  • Idiot Hair: Not the brightest bulb, since her main concern is eating many types of food.
  • Little Bit Beastly: Has rabbit ears, though whether she also has the tail is not certain.
  • Optional Boss: She's the only character you're allowed to skip on recruiting to enter the library in Chapter 8.
  • Vapor Wear: Wears nothing but panties under her robe.

The Mysterious Pajama Girl
Location: Warp Destination
Variants: Miru Syndrome

The younger sister of Rumi, a shut-in who is obsessed with bunnies. She sets the story in motion by abducting Erina and teleporting into the real-world.

  • Creepy Child: Mostly because of her Demonic Possession, but Miru remains even when knocked to her senses, mostly because of how much of a shut-in she is and her single-minded fixation on Erina.
  • Demonic Possession: She is possessed by Noah in order to draw Erina back into the real-world.
  • Disc-One Final Boss: She's a monster in combat and Erina fights her one on one in the very room where the game starts. But once Erina beats her, an unseen character says they can't seem to use Miru's body properly. Then, Noah appears hovering over Miru's unconsicous body...
  • Emotion Bomb: Being kidnapped and separated from Erina causes her to radiate so much negativity that Noah is able to harvest it as magical power, giving her enough power to return to Rabi Rabi Island.
  • Green-Eyed Monster: Before her battle, she expresses jealousy over how Erina is much closer to her sister Rumi than her, believing Erina to not like her. While Noah was possessing her at the time and influencing her behavior, its implied that these thoughts were always present in her mind, and just exaggerated by Noah.
  • Heavy Sleeper: As her design implies, she mainly stays indoors sleeping, rather than being active outside.
  • Hold the Line: Her battle as Miru Syndrome has her taking very little damage throughout the first couple stages of the fight, forcing you to survive long enough for you to get Ribbon back, upon which her defenses take a severe drop and allow you to attack her normally.
  • Leitmotif: M.R., which only ever plays in her battle.
  • Room Full of Crazy: Her arena is full of creepy drawings of bunnies. Her music score is also one of the most sinister in the game.
  • Sdrawkcab Name: In Japanese, her name (ミル) is the reverse of her sister's name, Rumi (ルミ).
  • Songs in the Key of Panic: Her Leitmotif speeds up when her health gets low. It gets taken up to eleven in Miru Syndrome's final phase.
  • Stronger Sibling: Unlike Rumi, Miru does know magic, and powerful magic at that. It’s the reason Noah possesses her, since her body is very magically powerful and has a lot of mana to draw from.
  • Superboss: Is one of the bosses to have a much harder Special variant fought after the postgame, "Miru Syndrome". In addition to giving her many more attacks and boosting her stats and patterns through the roof, the fight overturns the regular progression of the fight by turning it into a survival boss where you must overcome all her attacks (and several phases where she summons dark illusions of Noah and Alius) before being able to actually harm her.
  • Teleport Spam: She constantly teleports around the arena to move instead of walking. And you're limited to your melee attack for her boss fight. She has an attack pattern which is basically just spamming teleportation right on your exact location in an attempt to Tele-Frag you.
  • The Shut-In: She'd rather stay at home and play with Erina than go outside and meet other people, which is why she's fine wearing pajamas.
  • The Unfavorite: Seems convinced that she's this to both Rumi and Erina, thinking that they both love each other more than her.
  • Vapor Wear: She doesn't seem to wear anything under her pajamas. She puts on more clothes during the ending, when she's convinced to leave the house more often.

     Noah (Spoiler Character)
The Crystallization of Mana, Ideals and Emotions
Click here  to see Noah's original form
Location: Warp Destination, Hall of Deep Memories
Variants: Erina the Forgotten Maiden

A mysterious rabbit-eared girl seemingly made of liquid mana. Erina meets her in the Warp Destination, where she seems to be plotting something revolving around the transformed bunny girl...

  • The Ace: Her past self was the strongest magic user in all of Rabi Rabi Island. Fittingly, she's the hardest boss in the main story, eclipsed only by the postgame and Special bosses. And as "Erina the Forgotten Maiden", she is the strongest boss in the game, period. note 
  • Assist Character: Erina the Forgotten Maiden will appear briefly to help Erina use the Bunny Memories, sacrificing some of her HP to nuke the screen for massive damage.
  • Battle Aura: Manifests a pale blue one shapped like a bunny's head as the Forgotten Maiden.
  • Battle Theme Music: The Truth Never Spoken, No Remorse, and RFN - III for each of her phases, although she shares them with Miriam, Rumi, and Irisu respectively. She's more associated with The Truth Never Spoken, to the point where it's considered her Leitmotif.
    • Finale as Erina, the Forgotten Maiden, which reuses the fanfare that plays whenever entering a new chapter as a Leitmotif. As befitting of the True Final Boss of Is the Order a DLC and the story as a whole.
  • Big Bad: The one responsible for almost all the conflicts in the story.
  • Counter-Attack: As The Forgotten Maiden, dealing too much damage with either Erina or Ribbon will cause her to slap you with a debuff neutering that attack type (Skill Ban and Mana Down respectively), forcing the player to balance their damage output and avoid doing too much damage with one type.
  • Disc-One Final Boss: She's the boss of Chapter 5, and the instigator of the Bunny Phenomenon and Erina and Miru's disappearance. After her defeat, Miru returns home, everyone settles in after a job well done, the credits roll...and Chapter 6 starts.
  • Fallen Hero: From the hero who sacrificed herself to save Rabi Rabi Island, to the Big Bad putting it in jeopardy all over again in a desperate bid to return.
  • Final-Exam Boss: Near the end of the fight with her first form, she'll begin using patterns from some of the bosses you've already beaten. Does this again as the Forgotten Maiden in her second phase.
  • Final Solution: Whatever happened to Rabi Ribi Island before the first Reset Button makes her do this to the island's entire population of bunnies, explaining their disappearance within.
  • Gameplay and Story Segregation: There's nothing stopping you from bringing the Bunny Memories (and thus Noah-Erina) with you during subsequent rematches with Noah. In fact, when Noah transforms into ??? (who resembles her Forgotten Maiden form) and you have the Bunny Memories, it triggers a cutscene where both Noahs will stare at each other in disbelief, granting you the "Time Paradox" achievement. You can even bring the Memories into a rematch with the Forgotten Maiden form with no consequence.
  • Graceful Loser: After her defeat, she realizes how wrong her actions were and acknowledges that Erina has the strength to protect Rabi Rabi Island.
  • Grand Theft Me: Possesses Miru to harvest her mana and eventually attack Erina when she tries to interfere with her plans again. Pulls this on Miriam in the post-game, but this time she means no malice behind it, only talking through her to say goodbye to Erina and clear up a few misunderstandings.
    • In fact, this is what she has planned to do to Erina in the first place, wanting to use her as her new body to come back to Rabi Ribi island.
  • Greater-Scope Villain: She only appears near the end of the game, but her threat level is far higher than that of the UPRPRC.
  • Marathon Boss: With three sequential forms packing large health bars and dozens of lethal attacks, Noah will generally take a lot of time to bring down. Her fight as the Forgotten Maiden also has three phases, except all her attacks are scaled up to endgame levels and her stats even more so, to the point where the fight is generally expected to take half an hour if done in a single go. Fortunately, you'll get checkpoints in between phases, as well as chances to heal and in the latter fight restock between them.
  • Multi-Stage Battle: She has three forms. This also applies to her fight as the Forgotten Maiden.
  • My God, What Have I Done?: After pushing the aforementioned Reset Button and exiling herself, she grew to regret doing so and devised a plan to replace Erina. Happens again after her defeat when she realizes how wrong her actions were.
  • Reset Button: Pushed this in the past, erasing everyone's memories so that Rabi Rabi Island wouldn't be discovered by the outside world. She also tells Erina in time she may have to do this as well after being defeated.
  • Slime Girl: Her current body has the appearance of this, as a result of her body degrading into a form of raw mana.
  • True Final Boss: Of Is the Order a DLC and the story as a whole as her past self: Erina the Forgotten Maiden, the former protector of Rabi Rabi Island.
  • Woobie, Destroyer of Worlds: All of her actions were just because she wanted to return home to Rabi Rabi Island.

Other Characters

    Mr. Tako (and his pets) 
Location: Plurkwood

A strange man living in Plurkwood who enlists Erina to find his two "pets". When she finds them, it turns out that they're less than friendly.

  • Dual Boss: Mr Tako's pets are fought as a pair, and will make an effort to synergize their attacks. If you kill one and fail to kill the other in time, it'll respawn with half its health.
  • Dude Looks Like a Lady: Erina mistakes Mr. Tako for female when she first meets him. Given that his sprite looks quite feminine, it's an easy mistake to make.
  • The One Guy: He's the only named male character in the whole series, and the only explicitly male character at all discounting the nerds from the Warp Destination.

    The Rainbow Crystal 
Location: Spectral Cave, Hall of Deep Memories
A crystal buried deep under Rabi Rabi Island, storing an incredible amount of magical power. Ashuri enlists Erina to help her find it, only for it to attack her when disturbed.

  • Optional Boss: A much harder version of the Rainbow Crystal with souped-up attacks and 16 crystals can be fought as an optional encounter in the DLC-exclusive Hall of Deep Memories, guarding an Easter Egg.
  • Kill One, Others Get Stronger: A variant. Although their attacks won't actually get stronger as you take down the crystals, they'll start unlocking new ones. In addition, every time you take out a crystal, the other ones will heal for a good chunk of health.
  • Wolfpack Boss: The Rainbow Crystal isn't just one boss, but 7 (8 in Hard and above) differently colored crystals that have different attack types. They can either attack in tandem, or send one to fight alone as the others temporarily retreat.

    Illusion Alius 
Location: Warp Destination, Forgotten Cave II
Variants: Illusion Alius II, Illusion Alius III, Illusion Alius IV
Mysterious, greyscale clones of Erina and Ribbon created by Noah to impede their progress in the Warp Destination.
  • Close-Range Combatant: Unlike all of the other bosses, Illusion Alius fights almost exclusively using close-ranged attacks, only sometimes supplementing them with Hammer Waves and attacks from Ribbon. She fights more akin to a fighting game boss than a bullet-hell one.
  • Counter-Attack: Starting from her third battle, she'll sometimes stop moving and project a '...' speech bubble over her head. Melee attacking her during this state will cause her to launch a vicious counter that can easily tear off half of your health in a single go.
  • Cycle of Hurting: Starting from her second fight, she gains access to Erina's hammer combo, which will stun you if you get hit before comboing you for a ridiculous amount of damage.
  • Fragile Speedster: Overlapping with Glass Cannon. Alius has low health for a boss of her equivalent level, but is extremely agile and can tear off huge chunks of health with each attack, to the point where getting caught by a combo is a One-Hit Kill on higher difficulties. She also loves jumping around to avoid your attacks, especially once she gets her hands on the Air Dash.
  • Mirror Boss: Illusion Alius fights almost exclusively using copied versions of your moves and Ribbon's magic. However, many of them will be stronger than the ones you use, and she can use them regardless of whether or not you have them at the time of the fight.
  • Multi-Stage Battle: When Illusion Alius II is downed, she will release a final shockwave that shrinks Erina before handing off the fight to the Illusion Ribbon, who continues the fight like an upgraded version of the original Ribbon fight. Notably, this doesn't happen in any of her other fights.
  • Recurring Boss: She has to be fought 3 times in the main story alone, with each successive battle upgrading her and increasing her moveset. A fourth Alius can be fought in the Forgotten Cave, and a souped-up Alius can be found as both a part of Miru Syndrome's fight and as the Final Boss of the BNA Boss Rush.
  • Status Effects: Inflicts Attack Down and Defense Down on a successful hit, making taking consecutive hits from her all the more painful. As Illusion Alius IV, she'll also inflict Unstable, which randomizes Erina's speed.