Please Help Me Find This Manga

Can you recommend me a manga with villains but with romance? (⌒▽⌒) (=・ω・=)

Okay so the first thing i clearly remember is the scene in the story was labolatory or something like that, the seme was find out the uke masturbating using the seme cell kind-like, well yeah i know the story maybe sound weird but please help me find the title. And i think it was the second story.

I don't remember clearly the story but there was a man quite old who is a office worker, at office he is a perfect worker but at home he is completely the opposite he becomes a lazy person, this is a secret but then a coworker, younger then him, finds out. And from here a story between them strats. I want to read it but a don't remenber the name so please help me find it

I read this yaoi manga where the protagonist was a female who was in love with the uke who was the “prince” of the school and she ended up becoming friends (?) with the seme who she didn’t know was with the uke, and fell for him instead. At some point she walked in on them doing it in the closet (?). If you know the name please tell me !! I think it’s pretty short, but I couldn’t find it because I don’t remember the name or anything.