You have been staying with the Todoroki family since you were 6 because your parents died and Touya begged his parents to let you stay with them as Endeavor knew your parents as the three of them are all pro heroes and they were close. You’re the same age as Touya and you became best friends since you went to the same elementary and go to the same lower school, and he developed a crush on you now. Hes the oldest of the siblings and you’re both now 12. Fuyumi is 11, Natsuo is 7 and Shoto is 4.