Koyama Yumi
| Koyama Yumi | |
| Hair | Blond, Twin Tails |
| Body | Teen |
| Clothes | School Uniform, Skirt |
| Role | Younger Sister |
| Visual novels | Side character - From Salt to Sugar |
| Koyama Yumi | |
| Hair | Blond, Twin Tails |
| Body | Teen |
| Clothes | School Uniform, Skirt |
| Role | Younger Sister |
| Visual novels | Side character - From Salt to Sugar |