History Manga / MariaNoDanzai

* TragicBromance: Kiritaka and Yuda became close friends after the former saved the latter from Okaya's group. Kiritaka often went to Yuda's house to give him homework and had Yuda help him for the studies. Yuda grieved Kiritaka's death and was guilt-ridden for not actively putting a stop to the severe bullying. Viewing the very same people who killed his best friend living blissfully after is an extremely unfair reality to him [[spoiler:that he aids Maria to avenge Kiritaka.]]

* ABirthdayNotABreak: The first chapter alone brings us what Kiritaka regularly goes through from his bullies torments, from getting kicked hard in the stomach since they stuck a target on his shirt, to [[ForceFeeding force-feeding]] him with his mother's bento but with cockroaches mixed in. When Kiritaka comes home, his mother greets him with a cake and wishes him a happy 14th birthday. Later that night, the bullies text Kiritaka with [[FabricatedBlackmail an edited video of his mother in a sex video]] and demand they all meet up somewhere. The bullies blackmail Kiritaka into jumping off a cliff or else the video gets put online. He survived the fall, [[LookBothWays but not the truck]].

* FrameUp: [[spoiler:Maria threatens Yuda, who confessed his murder of Iijima to her, that she will report him to the police and make him the scapegoat of her own murders of her son's two bullies as her attempt to make him withdraw from associating with her.]]

** [[spoiler:After Yuda tells Maria how he came to learn about her, along with how he murdered Iijima [[HeKnowsTooMuch for knowing that Maria was connected to Shikimi]], [[PsychoSupporter he begs Maria to use him as her accomplice]] in order to kill off the rest of [[GangOfBullies Okaya's friends]].friends. Maria responds by revealing that she recorded his confession to Iijima's murder on her phone and warning him not to associate himself with her again, under threat of [[FrameUp incriminating him for the murders she's already committed]].]]

Middle school student Kiritaka Nagare loves his mother, Mari, and does his best to not worry her. This includes not letting her know that [[BullyBrutality he is being relentlessly bullied at school]] by [[TheBully Nozomu Okaya]] and his cronies. One night, however, Kiritaka is sent an edited video of his mother having sex with a stranger, and is {{blackmail}}ed by Okaya into jumping off a cliff in exchange for not uploading it to the internet. Noticing that her son left the house in the middle of the night, Mari tracks Kiritaka to the cliff, [[YouAreTooLate only to find his mangled, broken body]] mere seconds before he is [[CruelAndUnusualDeath run over by a truck]] and [[DeathOfAChild killed]].

* ABirthdayNotABreak: The first chapter alone brings us what Kiritaka regularly goes through from his bullies torments, from getting kicked hard in the stomach since they stuck a target on his shirt, to [[ForceFeeding force-feeding]] him with his mother's bento but with cockroaches mixed in. When Kiritaka comes home, his mother greets him with a cake and wishes him a happy 14th birthday. Later that night, the bullies text Kiritaka with an edited video of his mother in a sex video and demand they all meet up somewhere. The bullies blackmail Kiritaka into jumping off a cliff or else the video gets put online. He survived the fall, [[LookBothWays but not the truck]].

** Okaya forces a SadisticChoice on Kiritaka: either he jumps off a cliff, or else Okaya will upload a heavily edited sex video of Mari. Why? Because Okaya had the gall to demand Kiritaka be the one to upload the video, and got pissed when told no!

** Okaya and his gang taunt Kiritaka with an edited sex video of his ''mother'', then demand that HE be the one to upload it. When Kiritaka refuses, Okaya threatens to upload the video himself unless Kiritaka jumps off a cliff. The poor kid gives in and takes the jump, leading to his death.

* TeensAreMonsters: Okaya and his underlings, BAR NONE. They ruthlessy torture Kiritaka without a shred of humanity, to the point of threatening to upload an obviously edited sex video of his ''mother'', unless he jumps off a cliff! He does just that, but gets killed when a truck suddenly runs him over. Most of the gang seemly looked dismayed at his sudden death... only because they didn't want to land in prison and tried to run off. The leader Okaya, on the other hand, felt disappointed that his punching bag "won" now that he's dead!

* TroublingUnchildlikeBehavior: Okaya and his fellow bullies entertain themselves by attempting to strangle a student to see how long he lasts before begging for mercy, [[ForceFeeding forcefully feeding]] Kiritaka cockroaches and blackmailing him with an edited sex video of his mother in order to make him jump off a cliff, not caring one bit if he breaks his legs. And they are still in ''middle school!''

* YourMom: As if Okaya and his lackeys weren't depraved enough already, they send Kiritaka a sex video with Mari's face edited on top, then tell him how "fuckable" she looks. Finally, Okaya gives Kiritaka a SadisticChoice: jump off the cliff they're standing on or he will spread the video on the internet.

** Maria Akeboshi: A broken [[GoodParents good mother]] turned to KnightTemplarParent who planned two years of revenge [[ATasteOfTheirOwnMedicine to give the brats a taste of their own medicine]] and [[KarmicDeath kill them for ripping her son away from her life]], [[TheUnfettered having to take unwanted, but needed actions that could help her reach her goal]], even if she feels very guilty.
** Nozomu Okaya and his GangOfBullies: [[TeensAreMonsters Middle schoolers]] who [[BullyBrutality torture their victim in sadistic ways]], led by TheSociopath who ultimately blackmails him to jump off a cliff and gets disappointed when he dies.

** [[spoiler:Akihiro Yuda: A former victim of the GangOfBullies before being saved by his best friend, traumatized by the horrific abuse that he stopped coming to school. [[ItsAllMyFault Deeply remorseful for not being further help when said friend died]], he [[BungledSuicide once tried to commit suicide]], [[TragicDropout resigned from school]], and [[{{Hikikomori}} stayed in his house for a long time]] until he saw that [[ButForMeItWasTuesday his tormentors moved on happily as if they didn't took an innocent life]]. [[ThisIsUnforgivable Enraged]], he trained himself to be a [[ColdBloodedTorture torturer]], but couldn't bear to do it on the first target because of his trauma. Then, he witnessed that someone has the same objective as his and [[LikeAGodToMe viewed her as a god]]. When he talks with her for the first time, he asks her to use him as she wishes as his redemption for his late friend.]]

* NotTheFallThatKillsYou: Averted to ''horrifying'' effect. Kiritaka's jump from the overpass indeed doesn't kill him like the bullies surmise it wouldn't, but ''un''like what they assume it doesn't just injure or break his legs -- it completely destroys them, leaving him unable to evade the truck that runs him over. Later on, [[spoiler:Shikimi]] is subjected to a similar situation when [[spoiler:Maria drops her into an empty well]], having insisted that the drop isn't long enough for the fall to kill. This isn't for reassurance, as Maria taunts afterward; the fall was meant to be non-lethal so [[spoiler:Shikimi could be alive to suffer from the isolation of being trapped at the bottom of the well, and predated on by insects]]. Even then, it does still seem to have caused some head trauma since [[spoiler:that's the part of Shikimi that hits the ground first, leaving her dazed and with slurred speech]].

* ArtisticLicenceBiology: Centipedes and cockroaches don't normally eat living human flesh. Though [[spoiler: Shikimi's death]] is based on an actual ancient execution method called [[https://en.m.wikipedia.org/wiki/Scaphism "Scaphism"]], the victims of that method take ''days'' to die and the flesh has to fester and rot first before bugs actually begin devouring it.

** Left with no other options, Kowase tries to use the cleaver Maria left him to [[LifeOrLimbDecision cut off his own hand]]. The blade breaks because it's an old cleaver and Kowase puts too much force while trying to cut the bone, leaving him to drown helplessly as he flails about.
** Shikimi initially doesn't even react to being [[ThrownDownAWell dropped down the well]]... until she notices that [[CreepyCrawlyTorture she's surrounded by a swarm of insects]], that is. Once they start crawling all over her and [[OrificeInvasion entering her orifices]], she breaks down screaming and begging for mercy.