Hara Sumika
原 澄夏
| Hara Sumika原 澄夏 | |
| Hair | Parted to Side, Teal, Waist Length+ |
| Eyes | Grey, Tareme |
| Body | Kid |
| Clothes | School Swimsuit |
| Personality | Docile, Friendly, Reserved, Taciturn |
| Role | School Swimming Club Member |
| Engages in | Swimming |
| Visual novels | Main character - Settai Club |
| Voiced by | Miru |