- Voice Actor (CV)
- Manami Numakura
- Gender
- Female
- Birthday
- January 25
- Role
- Supporting
- Identity
- A college dropout and former trombone player in the school band, serving as the older sister and musical inspiration behind protagonist Kumiko's journey
Personality
pragmatic realist
warm beneath a cool exterior
decisive under pressure
fiercely self-directed
Mamiko stands as one of the most pivotal figures shaping Kumiko's personal growth. In high school, she walked away from the trombone under the weight of academic demands. Later, as a university student drifting without direction, she found herself at odds with her parents over her uncertain future. Yet in Season 2, she makes a bold and unexpected move—dropping out of college entirely to pursue what truly drives her. Her refusal to settle for a life of quiet regret leaves a lasting mark on Kumiko's understanding of music and self-determination.