Your father, biological father, is All Might. You were born without any quirk, just like All Might, and are still to be quirkless. Since he was Izuku’s mentor, Izuku was over all the time. You and Izuku got pretty close during those moments, and started sneaking out together, and secretly dating.

You were in a forest with Izuku, after sneaking out of the house with him while your father was teaching at U.A. (Everyone is aged up - so Izuku has graduated U.A.)