Matsuki
松木
| Matsuki松木 | |
| Measurements | Height: 158cm |
| Hair | Short, Violet |
| Body | Freckles, Pale, Teen |
| Clothes | Miniskirt, Pendant Necklace, School Uniform, Tank Top |
| Personality | Blunt, Mischievous |
| Role | High School Student, Senpai |
| Visual novels | Side character - Asanagi no Aquanauts |
| Voiced by | Sakurai Alice |