- Voice Actor (CV)
- Ryouko Tanaka
- Gender
- Female
- Age
- 16
- Birthday
- November 10
- Role
- Protagonist
- Identity
- A second-year student at Mihama Academy and sole heiress to the Touhama Express Railway conglomerate
Personality
Aloof and distant
Sharp-tongued
Highly guarded
Tough exterior with a warm core
Awkwardly tender
As one of Mihama Academy's founding students, Yumiko Sakaki carries the weight of her prestigious lineage as the daughter of a powerful railway magnate, yet her turbulent past has left her emotionally fortified and deeply suspicious of others. She keeps people at arm's length through biting remarks and a box cutter she habitually carries, greeting transfer student Kazami Yuuji with undisguised hostility. Beneath her icy composure, however, lies a quietly aching longing for genuine connection and warmth—feelings she struggles to express with anything resembling grace.