It's a yaoi? or shounen ai (sorry it's been so long I can't remember) about a new teacher in the school who looks super young? So he's made to stay in the student dorms and pretend to be a student by the higher ups, and eventually falls in love with a student (ik ik, please don't judge me). I've been looking for this for an absurd amount of time, please help T_T
Don't get me wrong, a lot of Yaoi has toxic seme syndrome, but this guy is fucking NUTS. He kidnapped his grandpa and fully SA-ed him several times. He literally calls him out too like what dude why is your heart skipping a beat