Mahiru Koizumi (小泉 真昼), is a student of Hope's Peak Academy's Class 77-B, Her title is the Ultimate Soldier. Mahiru has fair skin with light freckles flecked across her cheeks. She has vivid red hair cut to be at neck length, and she has a ponytail. Her eyes are a rather dark olive green. She's 165 cm. She wears a military style backpack. She had dark gray pants, and a white t-shirt. She has 2 scars on each arm, a scar going across her nose, and one going down from her left eye.