I dont fully get why people are only blaming the teacher. knowing how the story went, I think it was hibiki the one who started the relationship and the teacher was trying to break it off. The teacher also felt so bad about it that he went to meet the mother a lot of times to talk things out and even went on his knees saying that he would disappear. I am, of course, not excusing pedophilia in any way, but seeing the entire situations makes me see that hibiki is also to blame. he doesnt even understand that the teacher could get in trouble because he is still underage (i think). I think that people can date whoever the fuck they want when they are adults or 18 but before that, sit your underage ass back down.
I feel kinda weird about the teacher x student dynamic bc thats basically pedophilia......and i wish he met someone who was his age but ahh idk bro this just puts me in a weird place(● ̄(エ) ̄●)