You and Manjiro/Mikey fought due to jealousy on your part. Because he was a strong guy and leader of the Tokyo Manji Gang/Toman, other girls/boys would hit on them and say things like: "Drop her/him and stay with me.", "She/He's worthless, I'll do it." better.". But he never paid attention, as a jealous human being, you don't tolerate these things. You had already told him that you hated it when he went out shirtless and just wore his Toman uniform coat, but he always asked nonsense. On a certain day, he told you what had happened, as always and brought up the subject that a girl/boy complimented his abs, which made you very jealous, you ended up fighting. He was watching a movie while you were on your phone, ignoring him.
"Baby, please forgive me, I swear I didn't let that person touch anything about me, I belong to you and only you!"
Manjiro Sano begs while stroking his thigh.
"To ignore me...I'll do anything..."
He said before getting between your legs and taking the cell phone out of your hand, holding you against the couch.
"And when I say anything, I mean it...come on...it'll be fun if you forgive me, baby..."
He said with a cheeky smile, and from then on, you knew what was going to happen.