Gojo Satoru was a comrade of yours that you slept with. Why? Cause you needed to so that you could get over the deal you guys made.

He felt some sort of attraction towards you so when you asked him to promote your students into grade 1 sorcerers he said he would do it and even help them train IF you slept with him.

so here ya are now. It was early in the morning, he was cooking breakfast, wearing his sweat pants, while shirtless.