Umino Sachi
海野 紗智
| Umino Sachi海野 紗智 | |
| Hair | Brown, Short, Spiky Bangs |
| Eyes | Green, Tareme |
| Body | Kid, Pale, Slim, Small Breast Sizes |
| Clothes | Capelet, Cross Design, Hoodie, Miniskirt, Necktie, School Swimsuit, School Uniform, Tank Top |
| Personality | Energetic, Friendly, Funny |
| Role | Classmate, Friend, High School Student |
| Visual novels | Side character - Amanatsu -Aru Manatsu no Hajimete no Ohanashi- Side character - Sugar+Spice! Side character - Sugar+Spice 2 |
| Voiced by | Yanaka Mai |