History Characters / ArachnidRecurringAssassins

* SpellMyNameWithAnS: Riokku[=/=]Riock.

* NoNameGiven: The Organization members are only known by their codenames and fake names, as they have [[UnPerson no real names or family registers.]]

* LightningBruiser

* BreakTheHaughty: Most of the smug and naughty villainesses in the series end up humiliated and broken until they wet themselves in fear and[=/=]or get killed. However, Sasori is noticeably portrayed with a certain respect even when she's defeated. Despite a brief VillainousBreakdown and not-quite death upon being defeated by Alice, she quickly gets over it and remains a confident and intimidating threat in ''Blattodea''.

** Worth noting is that Sasori puts a shirt on the stripped and unconscious Setsuna after taking her to her basement, which is surprisingly considerate of her. Still no panties for the ant-girl, though.

* WhatHappenedToTheMouse: After Dinoponera knocks Riock out during the Arachnid Hunt, we never see him again. As of ''Blattodea'' volume 5, he's still unaccounted for.

* SuddenSequelHeelSyndrome: ''Blattodea'' introduces him as an ally to Gokiburi, which makes him an antagonist to Chiyuri and Dinoponera. He downright says the girls should be killed if they cannot be disciplined, and his pupil Imomushi had left the prison like its shelter wasn't worth it to her. Even after learning that Chiyuri is the pupil of his old friend Yamato and deciding she and Setsuna can be useful, he knocks her out for no reason.

* BreakTheHaughty: Most of the smug and naughty villainesses in the series end up humiliated and broken until they wet themselves in fear and[=/=]or get killed. However, Sasori is noticeably portrayed with a certain respect even when she's defeated and remains a confident and intimidating threat in ''Blattodea''.

* MsFanservice: Downplayed. Sasori is a curvy woman dressed rather provocatively with some cleveage and miniskirts, but hardly shows as much skin as most other female characters in the series. This helps convey a sense of danger and untouchability to her character.

* YouNeverAsked: Sasori gets mad that he likely knew Imomushi had immunity to poison but never told her about it.

[[folder:Grasshopper/Kirigirisu]]
!!Grasshopper (キリギリス; Kirigirisu), alias Otonari Midori

* AnimalMotifs: Grasshoppers.

* PetTheDog:
** Downplayed; Sasori saves Setsuna from Rin and takes an interest on becoming a teacher figure to her like how Kumo was to Alice, which kind of... sort of... vaguely makes up for the whole "gang-raped a million times by dozens of zombies" thing?... Clearly, Setsuna will be kissing and thanking her in yet another parallel to Youko from the author's ''Manga/KillingBites'' soon enough.
** Worth noting is that Sasori puts a shirt on the stripped and unconscious Setsuna after taking her to her basement, which is surprisingly considerate of her. Still no panties for the ant-girl, though.

* InsaneTrollLogic: He's supposed to be a TokenGoodTeammate among all the depraved assassins, but appears as an antagonist in ''Blattodea'' acting in [[KickTheDog nonsensical and gratuitously evil ways]]. He sends assassins to kill Chiyuri and Setsuna as punishment for defending themselves against Juzuhigemushi's threats of rape, giving the absurd justification that Chiyuri must be a spy aligned with Serena just because she's friends with Setsuna and is as strong as Imomushi. Then once Setsuna is captured and is found to be a ZombieInfectee, Shoichiro accuses Chiyuri of being infected too and demands her banishment like she isn't worth raping. And when she reveals Yamato is her master, what the mangaka does is knock her out on the spot without provocation.

* SuddenSequelHeelSyndrome: ''Blattodea'' introduces him as an ally to Gokiburi, which makes him an antagonist to Chiyuri and Dinoponera. He downright says the girls should be killed if they cannot be disciplined, and his pupil Imomushi had left the prison like its shelter wasn't worth it to her. He seems to only get ''more'' hostile after learning that Chiyuri is the pupil of his old friend Yamato.

* ClimaxBoss: Sasori's real battle against Alice begins as she [[spoiler:kills Yoriko and claims to have killed her mother too, confirming all the suffering Alice has been through was not a coincidence]]. Alice internally screams that Sasori is her ultimate enemy in this battle royale.

* PetTheDog: Downplayed; Sasori saves Setsuna from Rin and takes an interest on becoming a teacher figure to her like how Kumo was to Alice, which kind of... sort of... vaguely makes up for the whole "gang-raped a million times by dozens of zombies" thing?...

A cruel assassin who infiltrates Alice's school as a part-time nurse and becomes interested in being the one to kill her. She uses syringes with toxins to paralyse, torture and kill her targets.\\\

** Setsuna despises Sasori for getting her raped and turned into a half-zombie during the Arachnid Hunt.

* PetTheDog: Sasori saves Setsuna from Rin and takes an interest on becoming a teacher figure to her like how Kumo was to Alice, which kind of... sort of... vaguely makes up for the whole "gang-raped a million times by dozens of zombies" thing?...

* MsFanservice: Downplayed. Sasori dresses rather provocatively with some cleveage and miniskirts, but hardly shows as much skin as most other female characters in the series. This helps convey a sense of danger and untouchability to her character.

* VillainousRescue: Sasori keeps Rin from killing Setsuna by putting the latter to sleep. She most likely has no good intentions whatsoever for the poor ambulant rape virus cure, though...

** In ''Caterpillar'', when Imomushi first punches Sasori away she feels she's been countered by ''something'' and Sasori suddenly tears the rubble that's fallen over her afterwards.

* KickTheDog: Sasori gets Dinoponera raped by the army ants as part of Suzumebachi's absurd plan against the incoming zombie apocalypse, but mainly does for her own enjoyment and finds the ant-girl's fate hilarious. Right afterwards, Sasori (almost) kills Yoriko and declares she was involved in the murder of Alice's mother. As such, Sasori is a HateSink and a major antagonist in the overall story despite not holding BigBad or even TheDragon status.

* NightmareFetishist: Really likes to dissect her victims.

* VillainousBreakdown: Becomes very angry once she realizes that Alice had spent the past week preparing traps all over the school and more or less had the fight won before it even began.

* InsaneTrollLogic: He antagonises Chiyuri and Setsuna in ''Blattodea'' by sending assassins to kill them for defending themselves against a gratuitously evil rapist like Juzuhigemushi, giving the nonsensical justification that Chiyuri must be a spy aligned with Serena just because she's friends with Setsuna and is as strong as Imomushi.

* OppositeSexClone: They're vaguely stated to have been cloned from Kabutomushi, who doesn't seem to be aware of it.

* SuddenSequelHeelSyndrome: ''Blattodea'' introduces him as an ally to Gokiburi, which makes him an antagonist to Chiyuri and Dinoponera. He downright says the girls should be killed if they cannot be disciplined, and his pupil Imomushi had left the prison like its shelter wasn't worth it to her. He only ceases hostilities after learning that Chiyuri is the pupil of his old friend Yamato.

* NoCelebritiesWereHarmed: As part of Murata's grand plan to solve the Earth's energy crisis by making deceased authors spin in their graves, Shoichiro is a Creator/ShotaroIshinomori who works for Shocker.

* SmugSuper: He's certain that he can kill anyone in a single hit. And he actually ''would'' have killed Kabutomushi if it wasn't for that heart armor business.

* NoCelebritiesWereHarmed: He's a Creator/ShotaroIshinomori who works for Shocker.

* SuddenSequelHeelSyndrome: ''Blattodea'' introduces him as an ally to Gokiburi, which makes him an antagonist to Chiyuri and Dinoponera. He downright says the girls should be killed if they cannot be disciplined, and his pupil Imomushi had left the prison like its shelter wasn't worth it to her.

* {{Bishonen}}: A very pretty-looking guy.

* CloneByConversion: The idea that they're cloned from Kabutomushi in some fashion is never actually elaborated upon.

* TheOneGuy: Hibiki is the most notable of the few recurring male characters in the story.

* EveryoneHasStandards: Even Hibiki hates how Megumi rules Hibarigaoka Prison with corruption and fear, but feels like he can't do anything about it on his own. Once Chiyuri voices her disgust for the prison and vows to destroy it, he admits she's right and starts helping her.

* BareFistedMonk: To Dinoponera asking if he wants to bring a weapon to fight her, he responds that a true man only needs the body of steel they have built themselves. He doesn't hesitate to challenge Abu the swordsman in ''Blattodea'' either, though he doesn't get to try.

* HeManWomanHater: His introductory scene in ''Blattodea'' has him berating the perverted prisoners around him for lusting over women whose beauty can't compare to that of men and that are so "cowardly, arrogant, vile, weak in body and in spirit" that they couldn't hope to be heroes.

* PeekABangs: Her hair covers her left eye, unlike how Tomoko covers her right.

* CreepyChild: It doesn't take long for them to creep out Imomushi with their... curiosity. They take off what little clothes she's wearing when Jigabachi paralyses her and begin happily groping her until they get into an argument and begin throwing each other around instead.

* DamselInDistress: She and Oki are captured by the student mob in chapter 60 and are put into some kind of crucification as the students form ant-like totems to hold them on display for Alice to see.

* {{Expy}}: Geji, or rather Momoko, looks like fellow Gangan Comics character [[Manga/NoMatterHowILookAtItItsYouGuysFaultImNotPopular Tomoko Kuroki]], though she acts the opposite of her in many ways. Notably, the omake of ''Arachnid'' Volume 8 [[LampshadeHanging goes out of its way]] to acknowledge their similarities and even shows Geji does have a few of Tomoko's quirks. By ''Blattodea'', Momoko is outright dressed almost the same as Tomoko and paraphrases her series' "no matter how I look at it, it's your guys fault..." title (the only other time she said that was on the aforementioned omake). Briefly acknowledged in 2021 by ''[=WataMote=]'' authors Creator/NicoTanigawa [[https://twitter.com/harimoguni/status/1415620618439958529 on Twitter]] too.

The author of the ''Kahen Rider'' series who turns out to be Imomushi's master. He appears in ''Blattodea'' working as one of the directors at Hibarigaoka Prison, and hands Gokiburi a bunch of goons to help her against Chiyuri.

* AsskickingLeadsToLeadership: Kagimushi is one of the most high-ranked assassins in the Organization and becomes one of the directors of Hibarigaoka Prison in ''Blattodea''. Even though Gokiburi acts like she's a big deal in there, she still answers to Kagimushi and is unnerved by him.

* MegatonPunch: Pretends to do one on Bokugehamushi, stopping just short of her face. The huge shockwave from the move plus the fear factor still incapacitates her by causing a PowerIncontinence. He later performs one that hits harder than Osamushi's own 100000 horsepower steel arm.

* BareFistedMonk: To Dinoponera asking if he wants to bring a weapon to fight her, he responds that a true man only needs the body of steel they have built themselves.

* ItsPersonal: Wants revenge for Kumo's death, without knowing Kumo forced Alice to kill him. Even after Alice explains this, Hibiki still feels bitter about it.

* {{Kiai}}: Repeatedly shouts "LOVE" while stomping people, then shouts "JUSTICE" when he's done.

* WouldHitAGirl: You can easily find examples of ''actual'' Kamen Riders killing female opponents with extreme prejudice, and Hibiki himself is portrayed as deranged for partaking in this. He almost gets Megumi gangraped, brutalizes Alice with great pleasure and shows no mercy to Dinoponera either.

* ButtMonkey: First time we see Abu, he gets whacked out of a building in an almost comical way. The second time, Chiyuri punches him in the gut and knocks him out before he does anything.

* FlashStep: He's able to disappear from Kabutomushi's sight and stab her during the split second she's distracted. [[ContinuityNod It is the]] same "Brand Nero" ShadowWalker skill Isaac had in ''Manga/{{Jackals}}''.

* KatanasAreJustBetter: Kabutomushi even calls his style old-fashioned.
* MasterSwordsman: He's clearly a pretty danguerous fellow, even though he's then played for a fool and hilariously thrown off the building.

** In ''Blattodea'', he's part of a QuirkyMiniBossSquad who wants both Chiyuri and Dinoponera killed. He fights Hibiki and Chiyuri while his teammate Rin fights Dinoponera elsewhere in the prison.