J713D's manga / #Age gap(22)

Even when I love the main story (H&R) and I kind of like Harasen, I've to sadly admit that the stories here are not my favorites. 1.In the end Harasen end up going against his own moral rules about students, and common 22 years?!! Easily could be his father! He tries to be a good teacher and care about students. And I thought that it was maybe because he's the terrible misfortune of facing that old man horrible teacher when he was an student; which leads me to 2. The disgusting old man! Like if Hara can be Sorano's dad, can you even imagine that old dude and Hibiki age difference?! Pretty sure close to be his grampa!! I'm sorry but NO ‍♂️ I like the author but I'm staying with the Doukyuusei main characters and their beautiful story