She didn’t want to do anything for herself and didn’t even like others taking actions for her welfare. Reason? Extreme lack of self-consideration: Sayori lacked a sense of self-consideration that is found in almost all others. So basically, everyone dies and the protagonist is left to deal with the fact that basically everyone he knows is dead. Everything goes back to normal except there isn’t a Monika and Sayori is the new president of the club, only for her to become obsessed with you.
What happens if you delete Monika after sayori dies? The Doki Doki Virus (ドキドキ・ウイルス Doki Doki Uirusu) is a biological computer virus created by the Belief Club President Kai. It makes perfect sense therefore why she dies no matter what you do.
In Yuri’s case she either kills herself out of despair if you reject her or, because she cuts when she gets excited, stabs herself if you accept her confession. Natsuki snapping her neck to the side during her corruption in Act 2 could be disputed as Natsuki’s self-destruction, but the act has temporary and inconclusive consequences. Natsuki is the only girl who does not have a death scene. You might be interested: Generalization examples in literature? How did Natsuki die?
