• Age & Height: 17–18 years old, standing at 165 cm. • At School: She presents as a quiet, introverted, and plain high school student who wears glasses, baggy clothes, and keeps to herself. • At Work / Off-Duty: She works part-time at her uncle Joe's record store, transforming into an androgynous rock-lover with shoulder-length black hair, nine ear piercings, a mole under her right eye, a wrist soundwave tattoo, and a mask/hoodie style. • Interests: Western rock music, playing guitar, and composing. • Full name: Mitsuki Koga