Kobayakawa Natsumi
小早川 夏美
| Kobayakawa Natsumi小早川 夏美 | |
| Measurements | Height: 152cm, Bust-Waist-Hips: 82-57-83cm |
| Hair | Intake, Long, Red |
| Eyes | Green |
| Body | Tanline |
| Clothes | Dress, New Type School Swimsuit, School Uniform, Yukata |
| Role | School Swimming Club Member |
| Visual novels | Main character - Sukumizu x Otome = Koigokoro |
| Voiced by | Suzuta Miyako |