Chisaki Nanami
知崎 七海
| Chisaki Nanami知崎 七海 | |
| Hair | Black, Shoulder-length |
| Eyes | Brown |
| Body | Tentacle |
| Clothes | Bikini, Hoodie, School Uniform, Sweatpants, T-shirt, Tank Top |
| Personality | Tomboy |
| Role | High School Student |
| Visual novels | Main character - Youka no Sono Main character - Youka no Sono II |