History Fanfic / Kosatsu

* AnthropomorphicPersonification: [[spoiler: Just like Omori to Sunny, Kosatsu, by the time of the fic, became Steven's very desire to kill himself for "letting" Miki die and killing Mike over it personified in a younger version of him. But, he's also implied to represent Steven's flaws (or at least, them from his point of view), amplified to terrifying degrees.]]

* BigLittleBrother: A mild RunningGag is how, even though Kosatsu/Steven is the little brother, he's much taller than Mike, who's the older brother.

* DidNotDieThatWay: [[spoiler: Steven finds out that it was ''him'' who killed Mike by strangulation in a fit of rage gone out of control and, while he hit the DespairEventHorizon, Gold positioned Mike's body outside in a way it'd be implied he died in the hands of a wild Pokémon.]]

* FusionFic:
** It combines the plot of ''VideoGame/{{Omori}}'', with the characters from ''Franchise/{{Pokemon}}'' ''Main/{{Creepypasta}}s'', and it is set in a slightly alternate history version of Kanto where no one between the protagonists took the title of Kanto's Champion yet thanks to the events in the fic's backstory.
** For the human character's roles themselves, Steven and Mike from ''Fanfic/PokemonStrangledRed'' take the roles of Sunny and Mari, Red from ''Pokémon Glitchy Red'' takes Aubrey's role, Alexis from FNF's version of Hypno's Lullaby takes Kel's role, Leaf from ''Fanfic/PokemonAbandonedLonliness'' takes Hero's role, and Gold from ''Fanfic/PokemonLostSilver'' takes Basil's role.

* SparedByTheAdaptation: Alexis and Leaf (and by extension from the latter, the Eevee), who all died in their respective stories, are alive in this one. [[spoiler: DoubleSubverted with Gold, who almost offs himself but has his attempt halted by Steven, and {{Averted}} by Miki and Mike, who are long dead by the story's present, their deaths serving as the reason why the group split, and the reason for Steven's mental decline.]]
* StepfordSmiler: As a parallel to Basil's amplified meekness and anxiousness, Gold ramped up his energetic personality to mild MotorMouth levels, and, barring exceptions, he ever appears cheerful, hopeful, smiling, and forgiving towards any bad incident. It is made clear from the start that his attitude is strange, and [[spoiler: it turns out to be a mask to cover the guilt for covering up the cause of Mike's death.]]

** While Alexis takes Kel's role and Glitchy!Red has Aubrey's, in the dream world, Red seems to have Kel's PluckyComicRelief and JerkWithAHeartOfGold characteristics along with some of his lines.

*** The justification for the "I have no reason to be here" moment in this continuity is implied to be because Steven [[WhyDidItHaveToBeSnakes actually has phasmophobia (fear of ghosts)]].

* ABoyAndHisX: Although the bonds between the trainers are the plot's driving force, the bond between their Pokémon is not far behind.

** Glitchy!Red also quotes a bit of his original self. The second half of Chapter 4's title and part of what he says once he recognizes Steven is "Am I a joke to you?", and in the following chapter, he says a defiant LittleNo multiple times in response to Alexis, and justifies his theft of Gold's diary with a tweaked version of his (thanks to ''FNF Lullaby'') infamous "They took everything from me" speech.

*** [[spoiler: Something in one of the Torment Room's areas, and]] Mike as a spirit, apologize to Steven with the same words the latter used in the PlayableEpilogue of the story.

*** Gold's "Something" creatures are shadows of Unowns who spell upsetting things around him, reflecting the Unowns who'd spell cryptid phrases in the original story. Some of the Unown phrases are quoted into the story itself, with the most recurring one being "No more".
*** Dream!Gold, [[spoiler: in the Torment Room, has a lot of punishments affecting his limbs, referring to how in the story, he lost his arms and legs. The way he and his Cyndaquil experience their final death is even framed somewhat similarly to the main route of the game: Cyndaquil tries to illuminate a room but is dragged off to death, Gold has his limbs ripped off, then his head ripped off, then finally dies.]]