You're the third reader who seems to not understand what this story is about and you don't look to be the last. The teacher is dating her because of what happened to Yuki. If he DIDN'T date her he would probably feel like a failure as a teacher. So guess he's not the 'idiot'. A teacher will always try their best to be what they think a teacher is after all. T.
lmao defending a teacher choice of dating a student? tf is wrong with you, a failure if he didn't date her? are you hearing yourself? he can easily support her without dating her, you seem to be just as whack (づ￣ ³￣)づ
well that teach is whack, dating his own high school student, idiot lmao however Yuki, easily my fav, small theory but I think he might've killed himself mm and the sis blames the teacher for it, ofc not sure about that tho. I hope he ends up happily with Haru (●￣(ｴ)￣●)