Hosaka Keigo
保坂 圭吾
| Hosaka Keigo保坂 圭吾 | |
| Measurements | Height: 183cm, Weight: 69kg |
| Hair | Brown, Short |
| Eyes | Brown |
| Body | Pale, Tall (obsolete), Teen |
| Clothes | Jeans, T-shirt |
| Role | Childhood Friend, Classmate, High School Student, Rival |
| Visual novels | Side character - Silent Half |
| Voiced by | Seijuurou |