Aiba Naoki
相庭 直紀
| Aiba Naoki相庭 直紀 | |
| Measurements | Height: 150cm, Weight: 30kg |
| Birthday | 6 July |
| Hair | Green, Short |
| Eyes | Green, Tareme |
| Body | Pale, Slim, Teen |
| Role | Full Sister |
| Subject of | Hospitalization, Illness |
| Visual novels | Side character - Silent Half |
| Voiced by | Motchi |