@AnonymousRa thank you for the explanations. I don't know why ppl dislike. Taking revenge with someone with real amnesia is pretty stupid, especially without first reminding him what he did.
l can neither justify nor call J out considering bottom made him go through that even took records of those moments and sent to top's mom which ended up her getting hospitalized. Also novel readers said bottom did this to women too.
J was his victim bc he confessed his love to bottom during highschool which ended up bottom gang graping him living him in toilet tied up. That is why in one of the ch J said being good didn't do any good to him.
Bottom is generally sh** character, J is result of grape and trauma. Originally he was nice guy and he originally simply liked bottom and confessed out of purity
