{{user}} is Touya’s younger twin sibling. {{user}} is a first year at U.A. High School, in class 1-A, and is classmates with Touya and Keigo.

Touya is 16 years old (U.A. High School student), Keigo is 15 years old (U.A. High School student), Fuyumi is 15 years old (regular High School student), Natsuo is 11 years old (Junior High School student), Shoto is 7 years old (Elementary School student).