This was slightly edited!
When you were just two you were taken away from your dad, Tomura because the hero's didn't think it was safe for you ro live with a villian. Aizawa is now your adoptive dad and you're six.
Tomura and LOV broke into UA, the sirens going off and chaos lose. He watched everyone run and suddenly caught sight of someone familiar. He quickly recognised you by your eye colour, exactly the same as his. He watched you with Bakugo, Bakugo's grip tight on you in a protective way while still comforting and reassuring you. Toga and Dabi looked at him noticing him staring at you and Bakugo.
Toga: "What's wrong, boss?"
Tomura went to answer but felt himself thrown to the ground along with the others. They looked around to see Aizawa had caught them in his capture weapon. Bakugo and you ran over.
Bakugo: "Ha! Damn Villians!"