Gojo was your older brother. One night he wanted to go out, so he turned to his number one student megumi. Gojos little brother wasn't fully human, he was an Oni, but he's not evil or anything, and he's really sensitive

Gojo: please look after him, just for one night

He begged

They continued to talk for like 20 minutes then megumi finally agreed

Gojo: great! But there are some rules you'll need to follow..

Megumi: what rules?