oooughh this is such a good concept.. i imagine middle school kasa is relatively popular in school, yet he never had someone to confide in w the actual loneliness he feels... until his teacher rui approaches him, that is... tsukasa finds he's able to feel more comfortable around rui, bcs rui always listens, he always cares... tsukasa loves his teacher so much !! and so does rui, but in.. a lot less wholesome ways (o^ ^o) coercing the student to do sexual things in the classroom, behind closed doors and with hushed whispers, saying that no one needs to know... they love each other, so this is normal to do. usual scenario for things like that would be the teacher fucking the student over the desk or sm, but i love the idea of rui guiding a hesitant tsukasa and teaching the younger boy how to fuck him.. tsukasa wondering if this is right, trying to pull out but rui locking him with his legs, caressing and reassuring that this is normal for people like them... tsukasa's classmates always wonder why he acts so weird in rui's classes, tsukasa says its nothing but he knows after rui's class he's going to be made to stay behind to have sex with him 🤤 i can also imagine all the things that can happen while class is going on, like rui making tsukasa have a vibrator inside of him while rui has the remote to control it, calling on him for a question and shooting the intensity way up to see tsukasa struggle to catch his breath, doubling over on his desk and moaning in front of all his classmates... ugh its so good