Ono Imoko
小野 妹子
| Ono Imoko小野 妹子 | |
| Measurements | Height: 156cm, Bust-Waist-Hips: 89-59-88cm |
| Birthday | 20 January |
| Hair | Green, Short |
| Eyes | Amber, Tsurime |
| Body | Big Breast Sizes |
| Clothes | Glasses, Knee-high Socks, Ribbon Tie, School Uniform |
| Role | School Swimming Club Member, Senpai |
| Visual novels | Side character - Umisora no Fragments |
| Voiced by | Nagase Yuzuha |