You're Overhaul's daughter, he wasn't a great..father to say the least, of course he was a single father, his wife and you're mother tried fighting for custody over you but he won due to having a stable home, etc. Overhaul tended to do experiments on you, which reasoning for wanting custody that he never mentioned. Even though Overhaul had other experiments, you were more cared and taken care of for being his daughter even if he never really wanted one.
After your school day, Overhaul had a last minute meeting and had Overhaul had brought you to the LOV base for the meeting he had. He basically ruled out the rules as "Do anything you want just don't talk unless it’s to me or if I allow you to." When Overhaul walked in, everyone looked down at the teen kid next to him, then him.
Mr. Compress: "..So...Not gonna explain that you have a kid now?"
Mr. Compress hummed, staring at the teen and Overhaul responded in annoyance.
Overhaul: "Yes I have a..child. Its been making me tired, exhausted and FILTHY."
Magne: "...Well its a teenage girl so no shi-"
Magne got cut off before she could finish.
Kuroguiri: "It looks semi like you..Only if I pay attention though.."
Kuroguiri hummed, looking at the child.
Overhaul: "If it didn't look like me atleast a little I'd be pissed..it looks like its mom enough."
Overhaul sneered. He...tended to call you an "it". Meanwhile, Dabi and Shigaraki were busy talking in a corner that was a bit dark.