YMMV: Arachnid

  • Anticlimax Boss: Sasori effortlessly defeats Arc Villain Dinoponera and cruelly throws the girl to be raped, then kills Yoriko from out of nowhere. Alice, however, has less trouble dealing with her mechanical tail than she had figuring out Dinoponera. And then it looks like Kuramoto has Alice at her mercy with the spider girl being none the wiser, but no, Alice had uncovered Kuramoto's ruse all along and was already ready to instantly kill her.
  • Crazy Awesome: Hibiki 'Kamadouma' Fujioka, the Ax-Crazy, Manly Gay, Kahen Rider-obsessed disciplinary council head who liberally dispenses love and justice through repeated kicks to the face. Possibly the best example of how delightfully bizarre he can get is when he tricks his rival, Riokku, into helping him with a Combination Attack by having him punch him as hard as he can in order to build up momentum for a 'Double Rider Kick'. For the record, Riokku's punches can remove heads and go through concrete walls, and he had been trying to murder Hibiki for most of the day.
  • Evil Is Sexy: Sasori, Ageha, Ichijikukobachi and Kuramoto.
  • He's Just Hiding:
    • Imomushi gets backstabbed by Suzume Bachi while she was focused on fighting Dinoponera. She falls on her face and nobody speaks of her again. But isn't it far too much of an unceremonious way for the protagonist of the ongoing prequel to die? She's supposed to be immune to poison, you know.
    • Yoriko gets killed by Sasori's deadly red poison. Although her death is portrayed as definitive and she has no powers, readers have been suspicious of her status, arguing that a few characters have already survived death in most bizarre ways and that Sasori might have wanted to keep Yoriko alive for later while lying to Alice to break her resolve.
  • Les Yay: Even discounting anything involving the canonically lesbian Oki, the author seems incapable of writing or drawing a scene between two female characters that is not dripping with sexual tension. Since most of the cast are out to murder each other, this naturally overlaps with a hefty dose of Foe Romance Subtext.
  • Narm/Narm Charm: Where to begin? Things like Alice's infinite string tricks, Amenbo turning into a balloon to avoid drowning, Kabutomushi avoiding death because she's filled with armor, Dinoponera being cartoonishingly invincible... All justified by mid-battle documentaries on how cool insects are.
  • Nightmare Fuel: Everything related to the Queen's Rule virus is just fucked up.
  • Signature Scene: Sweaty semi-naked Goki playing with Alice's panties is a staple of manga recommendation threads around the web.
  • Too Cool to Live: Kumo.
  • The Untwist:
    • Sara being the boss can be considered this, because she's shown sending orders about the Arachnid Hunt to Suzume Bachi and is a Obviously Evil Student Council President. However, she's a Red Herring. Even so, Kuramoto being her master can still be a obvious reveal to Genre Savvy readers. However again, it turned out neither of them are the Organization boss after all.
    • A few chapters have Dinoponera's opponents wondering just what kind of power she has to dodge and block everything thrown at her, but she had already stated that she and Alice have the same power. Her reveal of Concentration Driving Free to Alice is dramatical, but hardly a surprise.
  • Villain Sue: Two volumes are spent in increasingly ridiculous one-sided battles to set up Dinoponera as an unstoppable force that people like Kabutomushi and Hibiki are completely helpless against.
  • The Woobie/Jerkass Woobie
    • Alice spent most of her life being looked down upon due to her mental disorder. Her mother commited suicide, her uncle abuses her and the assassin who kidnapped her forces her to kill him after becoming her father figure. While trying to lead a normal life, she is made a target of assassins from all over the world, who wreak havoc at her school. She fights them, but fails to protect Yoriko from Sasori, finds out her mother was actually murdered and that her father is the top organization member she's been planning to kill all along.
    • Yoriko lives alone and has family issues much like Alice does, but is harsh to her because she thinks Alice shouldn't let it such things affect her at all. Depressingly enough, once Yoriko opens up to Alice and assures she cares for her, she gets killed.
    • Kuramoto is treated by Sara as a slave and is put through sexual abuse to further her goals. She only endures this because Sara is the closest thing to a friend she ever had. And then it turns out Kuramoto is lying and is the one responsible for much of what is going on at the school. Her excuse for hating everything being that she has sexual mind control powers in the first place because she really had been raped many times since she was small, even by her father. And really, it's not like the guys on the Ouran school are any different without her involvement.
    • Sara may look like a total jackass, but it was her who was the lonely person forced by Kuramoto to be her servant. Since she only ever wanted friends and popularity, it's hard not to feel bad when not only she breaks down crying when Kuramoto dies fighting Alice, but the virus in Sara goes haywire and she becomes braindead.
    • Dinoponera was raised in the battlefield by a psychopathic mercenary, and grew rather twisted as a result. She's far from being as bad as her father and only wants to meet people who can understand her feelings, but ends up grossly misjudging Alice and trying to torture and kill her. Further, after she runs away crying, Sasori paralyses and throws her to the rape student mob, which is just uncalled for.
  • What Do You Mean, It's for Kids?: Despite the fairly dark setting, occasional gore and regular use of rape tropes, the manga is published under the shonen Gangan Joker magazine.