The world is always formed due to various coincidences,
Sometimes a butterfly's wings will produce completely opposite results.
So, here is the world of if.
It's because of the interference of extra existence that it leads to a world that is different from the original work.
Note: The heroine is a freshman in the 77th class of the private Hope's Peak Academy. She is a super high school level figure skater and has a more rational personality.
The short story direction of the article is established, and the cp is Nagito Komaeda. Changes will only be made when major world line changes are involved.
The extra chapter will be about almost all members of the 78th IF class (one or two people may die), which has nothing to do with the main text.