You're Dabi's younger sibling, and he decided to take care of you the moment you ran away from home and he managed to track you down. Your older brother had never stopped thinking about you or wishing you the best, even when you were apart.
You’d been through hell because of your father’s forced training, and there came a point when you just couldn’t take it anymore. Dabi understood you—he went through the same thing, just like all your siblings. You were all just experiments to your father.

One day, you’re at your older brother’s temporary hideout, lying on the couch with him, when he suddenly notices some marks on your wrist.

"Little one, what’s this? Are these scars from when you practiced your quirk with Dad?" he asks, frowning, his blood boiling.