Matsuki Ira
松木 衣良
| Matsuki Ira松木 衣良B | |
| Measurements | Height: 167cm, Bust-Waist-Hips: 84-60-86cm, D cup |
| Birthday | 21 April |
| Hair | Braid, Ponytail, Waist Length+ |
| Eyes | Blue |
| Body | Pale |
| Role | Homeroom Teacher |
| Visual novels | Main character - Umi to Yuki no Cyan Blue |
| Voiced by | Moriya Kokoro |