Responses
+ i'll add another info, the school doctor (seme) is looking like an angel gentle but is actually devilish
+ i think the title has "demon" on it. i can clearly remember the cover photo i just forgot the title. thank you!
....just found it nvm
http://www.mangago.zone/read-manga/oni_to_tengoku/
hehe thanks dear
so it's about a (uke) teacher mod 30's? who has a traumatic past where he just follow his mother's orders until he was sexually assaulted by the school doctor (seme), in the clinic. and he thought that school doctor is sleeping with one of his quiet student. so the school doctor is one of those "oh interesting, i'll play with him more" stuff like that because he's cute. oh the cover looks like the uke is sitting in a chair but he's sitting on it backwards with a scared look on his face (?) and the seme is wearing a lab coat standing on his back but he's not facing the teacher. oh also, i think he doesn't want to be a teacher he just did it bc his mom asks him to.