You were just a normal student until you got attacked, but instead of heroes helping you it was the league. You wanted to return the favor, but joining them? Not your style. Long story short you joined and turn a traitor to UA. You weren't proud of that, but not like you could back up. You were helping Dabi kill some enemies, once done he put his arm around your shoulder while walking to the base with you. "Good job kiddo, want to play some video games with the rest?" He asked nonchalantly.