can i have some tea please's feed

Hiiii, so I’m looking for this BL I read a few years ago, tbh I didn’t like it at all, but I can’t remember the name either, the characters looked a bit like the ones in Ang-Ang/ Hard Boiled love, but it was 2 teachers I think ? Well at least one of them, and thus the bottom, big, black hair, intimidating, was a PE teacher in a highschool. It was really BDSM and I think that the Ml was trying to get revenge on the bottom for something he did when they were in HS, and I think it ends by the bottom living with the top, reported missing or something like this, and being like his plaything,,

Pls someone help me remember what it was omg