History YMMV / HololiveERROR

* NarmCharm: The Animated Manga features [[LittleBitBeastly a wide variety of anthropomorphic idols]], [[OurGodsAreDifferent mythical and fantasy creatures]] as well as varying thematic idols as well, which you'd think wouldn't fit in a high-school horror story, and yet, somehow, despite (or because of it) being [=COVER=]'s first attempt, and as shown by SugarWiki/HeReallyCanAct above, the [[DroneOfDread spine-tingling ambience and sound design]], SugarWiki/AwesomeArt and SceneryGorn, as well as the classic slow-burn SurrealHorror ala ''[[VisualNovel/HigurashiWhenTheyCry Higurashi: When They Cry]]'' and ''[[VideoGame/SilentHill Silent Hill]]'', it [[AndYouThoughtItWouldFail unexpectedly works to create a truly haunting and terrifying effect]].

* NarmCharm: The Animated Manga features [[LittleBitBeastly a wide variety of anthropomorphic idols]], [[OurGodsAreDifferent mythical and fantasy creatures]] as well as varying thematic idols as well, which you'd think wouldn't fit in a high-school horror story, and yet, somehow, despite (or because of it) being [=COVER=]'s first attempt, and as shown by SugarWiki/HeReallyCanAct above, the [[DroneOfDread spine-tingling ambience]] [[HellIsThatNoise and sound design]], SugarWiki/AwesomeArt and SceneryGorn, as well as the classic slow-burn SurrealHorror ala ''[[VisualNovel/HigurashiWhenTheyCry Higurashi: When They Cry]]'' and ''[[VideoGame/SilentHill Silent Hill]]'', it [[AndYouThoughtItWouldFail unexpectedly works to create a truly haunting and terrifying effect]].

* WildMassGuessing: [[WatsonianVersusDoylist The Doylist reason]] for the game's art room ghost is simply "we didn't want to hurt a hololive talent on-screen and so we changed it". On the other hand, the Watsonian reason for her existence has seen a pretty large amount of variance amongst the fandom, from the game being an AlternateTimeline to her being [[spoiler:a Perfect World construct turned ParadoxPerson after Shino found out about Mari]].

* WildMassGuessing: [[WatsonianVersusDoylist The Doylist reason]] for the game's art room ghost is simply "we didn't want to hurt a hololive talent on-screen and so we changed it". On the other hand, the Watsonian reason for her existence has seen a pretty large amount of variance amongst the fandom, from the game being a different timeline to her being [[spoiler:a Perfect World construct turned ParadoxPerson after Shino found out about Mari]].

** In the game demo, the SurpriseCreepy moment with the students turning to face you in complete synchronization.

*** Chapter 9's SurpriseCreepy insertion of Inari and Touka leveling a haunting DeathGlare towards the Transfer Student and the OminousVisualGlitch BlueScreenOfDeath a few moments later.

* TheWoobie:
** Shino, in the Past Episodes of the 3D series. Episode 4 sees her led along by Nanase and coldly rejected from the idea of hanging out to see a movie after getting her hopes up. Episode 5 sees her be told by Shiina that she "should stay away from the popular kid (the protagonist) for her own good", which visibly and audibly devastates her. Though she doesn't state exactly what or which of the previous conversations is the cause of her concern, in Episode 6, her conversation with Sakura highlights that she feels that she has bad luck, if because she unable to get close to the protagonist as she had hoped. Chapters 6 and 7 take this further by detailing her as a loner until she approaches the transfer student, and her being viciously told to disappear by Nanase for the crime of making sure the latter is alright. Chapter 8 has her at her DespairEventHorizon, being the SoleSurvivor of the landslide that decimated the school, tearfully begging the God of Aogami to save her newfound friends and spare her from any more pain. [[BeCarefulWhatYouWishFor While she did end up getting her wish granted]], it ended up [[LiteralSplitpersonality splitting her into two beings]] and trapping her in a GroundhogDayLoop, one living an idyllic school life but having no memories of the tragedies as well as the other students being unaware of her true identity(as shown below), and the other trying to reunite with her other self with the truth.
** The Present Transfer Student, at least in the manga. While every important conversation she's involved in on-screen has some sort of oddity attached to it, the significant ones are these: Saki and Touka's EmptyEyes stare during their talk about the spider lilies which unnerves her; Touka's DeathGlare shutdown over her positing an alternate possibility for the disappearing students; Saki, Touka and Inari having a FreakOut over Suzune playfully bumping into her, Shino's JumpScare appearance as Touka explains the rumour before Present Aogami High comes down, and the entirety of Chapters 9 and 10. None of these moments are really caused or started by herself, yet she consistently gets caught on the short end of the stick and doesn't understand anything of what's going on. Then Chapters 4 and 5 come around and she's thrust into abject horror with two of her friends acting as lifeless dolls, Shino insisting she go with her to an ominously vague destination, the SignatureScene classroom horror show, and being chased by post-FreakOut Shino after refusing her, and it's never made clear to her in any way what she's caught up in. The further things progress through Chapter 9, the more unsettled she appears to become, only for it to culminate in her being blindsided by the abrupt appearance of Inari and Touka amongst her future schoolmates, and then led away by a seemingly possessed Akane and Yuka. Then in Chapter 10, her asking about Akane and more specifically, Yuka, see her on the receiving end of some harrowing EmptyEyes glares from Kaoru, Saya and Miku, all of whom appear to have lost any knowledge of Yuka despite having talked with her the previous day; when the trio offer to show the Transfer Student in the absence of Akane, she gets freaked out and flees when Kaoru tries to assert that she doesn't go and look for Yuka. When she and Uzuki (whom she just met) catch up to Akane on the train, the latter is unreservedly hostile towards the Transfer Student, and later directly blames the poor girl for making Yuka disappear. Though it's [[JustifiedTrope justified]], as Chapter 15 reveals that she is indeed, Shino herself, albeit with different eyes, and the following chapter doesn't let up when Uzuki, Akane and Yuka become like Kaoru, Saya and Miku, forcing her to take up the Blue-eyed Shino's suggestion to face the truth, only for her to become horrified when she realises that she's taken on her counterpart's visage and is in a rather bleak, ruined version of Aogami. And Chapter 19 and 20 reinforce this as she finds the news article about [[DeadAllAlong her death]], sending her InTheDreamingStageOfGrief before being led back to [[LotusEaterMachine the Perfect World]], and the loops continue as she continues to live in a false happiness when in reality, she's all alone in a ruined classroom, blissfully unaware about the horrible truth.
** Yae. Between trying to show concern for her fellow classmates, particularly warning Sakura about the Art Prep Room only to be met with excitement after relaying the harrowing story, and trying to break through Nanase's {{Yandere}}-infused one-sided conversation only to be effectively dismissed, the poor girl has a rough ride during the Past Episodes, from her thoughts being repeatedly brushed off by her peers to her closest friend all but turning on her. In particular, Noel's acting portrays Yae as a conflicted individual who wants what's best for her friend, but hesitant to act after the strangeness that she's just witnessed, and the ''[=ERROR=]'' character appears helplessly conflicted on what to do after being left effectively and meekly hanging by her ChildhoodFriend.
** Suzune. Before apologizing, she spent two days worrying about the rumour regarding Transfer Students after playfully hitting the protagonist while excited about the upcoming festival. She gets short-lived reprieve after being forgiven, as an ambiguous event sees her screaming in abject terror in Episode 3, while the school coming down around her in Chapter 3 sees her choked up with tears in a HeroicBSOD as [[ItsAllMyFault she chastises herself]] for bringing about the destruction.
** Surprisingly enough, ''Nanase''. She {{used to be a|sweet kid}} NiceGirl that hated injustice and dishonesty, and [[ClassPrincess was good friends with just about everyone in the class]], especially Yae. However, it then appears that she has taken one too many walks through the forest, with ''something'' latching onto her and turning her into an AlphaBitch {{Yandere}} that genuinely considered ''[[ImpliedDeathThreat making all her classmates go away]]'' just so she could be with the transfer student. [[SarcasmMode And the best part?]] Chapter 7 shows that these are mere episodes and appear to happen ''only within the school'', and in-between them, she's still the NiceGirl she once was... and is well aware that something terrible is happening to her. Chapter 23 twists the knife further as it reveals that Nanase's NiceGirl personality was her real personality as she welcomes Sakura into the afterlife, and she died in the landslide when she was hallucinating, knowing that she wasn't herself.
** Mari. Just like Nanase, she too took plenty of walks through the woods. This leads to the heavy implication that she was DrivenToMadness as a result of her leisurely walks, and didn't create her MagnumOpus through entirely her own volition, losing her life in the process, thus quashing the notion that she did it while lucid.
** Sakura. If anyone needs a hug in the series more than Shino, it's her. Revealed in Chapter 21 to have survived the landslide, the first time we see her after several chapters is her breaking down in tears at the shrine on the night the school came down. She ended up parting with the Transfer Student as the latter left Aogami and focused on trying to resolve the landslide threat without removing the trees from the cursed woods, becoming an environmental scientist to do so, but ending up alone for years in a room in the process, all to stop a repeat of the spirits in the woodland influencing somebody else like they did to Nanase right in front of her, [[ItsAllMyFault whom she blames herself over being unable to save as a shrine maiden]], due to the losses its caused. Chapter 22 takes it a step further as even with the seeds she developed and her magnum opus, she couldn't muster any strength left to plant them and break the curse, ending [[AndIMustScream in a vegetative state]], feeling guilty that she couldn't pass on because she would just feel ashamed in front of her departed friends. Good thing Shino reassured her to rest, allowing her to [[PassingTheTorch pass her torch to Shino]], as once she did so, she was able to finally let go and [[DiedHappilyEverAfter die happily ever after]].
** The Transfer Student in [=19XX/1946=]. [[AmbiguousSituation If she is the same entity in Mari's period as she is in Shino's period]], she has seen one friend perish before her, and then caught up in an event in which five of her friends died. The montage that plays when Sakura recounts the events after the landslide shows she had a bad break with the only other surviving classmate, and the Complete Edition infers that she is the Present Reporter's grandmother, whose husband went to Aogami, a place she left intentionally, to investigate and apparently disappeared in. She doesn't exactly have it easy with that town.