Please Help Me Find This Manga

Im going crazy cause I can't remember the name
What is that manga with the black haired girl who likes being dominant and she has a relationship with two submissive boys one blonde and one with brown hair. She like uses strap ons with them lmao and the blonde boy is new in the relationship and was too scared to take it in the ass the first time. They're in college and the brown haired boy was already with the black haired girl before the blonde hair boy. Theres also a blonde haired girl who has a crush on the brown haired boy that joined in on all of their wacko relationship. SORRY IF THIS SOUNDS SO CONFUSINGGG

Hi guys! I am looking for a Manga to read again. It's about a boy who can see the heart's of people. The hearts are the true of that person. He befriend some music friends. The new friend suggested that he be a music conducter. And so he helps a lot of musicians in is school. I know it's kind of vague but I really want to read this again. Thanks!! (๑•ㅂ•)و✧

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