@starburst98 it's been a bit since I've read it but I do remember You trying to blackmail him into being her boyfriend. Then in The First Regret she mentions that if only she fell in love a long time ago then says "if I had noticed." Which I think means if she only noticed she was in love. It...
@lyanhyrt Kashii has liked him from before the manga starts as reveled in The First Regret. She liked him basically because he was kind but she couldn't really admit she liked her m until recently. I believe the train was a scheme to be alone with Junichi. Yuki, the trap, likes him because his...