Mizushima Mayu
水嶋 麻友
| Mizushima Mayu水嶋 麻友 | |
| Hair | Ahoge, Blue, V Bangs, Waist Length+ |
| Eyes | Blue |
| Body | Pale, Slim, Teen |
| Clothes | Loafers, School Uniform, Thigh-high Stockings |
| Personality | Closet Pervert, Hard Worker, Strict |
| Role | Class President, Classmate, High School Student |
| Visual novels | Main character - Imouto Kansatsu Chu! |
| Voiced by | Haichi Yuu |