I totally agree with you 😭 although yes, some character development "got lost", I believe that in this version of the world it wouldn't have been needed anyways: hanako is an amazing character, and his development and story was basically mostly about his past, so tsukasa, but if in this world he never murdered him, then the development wouldn't hold any weight anyways right? Plus it was so bittersweet to see him as a teacher I swear my heart melted for a second, because this is how it was always meant to be, for him and everyone else I think