The main lead is Rika Furude. Rika gets into a car accident after coming home from the swimming pool with her friends. When she wakes up, she finds herself in a world that she has never been in; a perfect world where nothing went wrong. Rika at first appears happy with this, in spite of feeling that all her struggles to fix the world were useless. However, without the tragedies having happened in the past, club activities never existed, Keiichi never appeared in Hinamizawa, Satoko bullied Rika, and the friendship that the main characters shared was never forged. Rika lashes out in anger until she realizes that this was a dream sent by Hanyū.
FUCK YEAH RIKA GOES PSYCHO AND KILLS EVERYONE