Kouenji Sora
高円寺 空
| Kouenji Sora高円寺 空 | |
| Hair | Ankle Length, Black |
| Eyes | Green |
| Body | Pale, Slim, Teen |
| Clothes | Hair Ribbon, Miniskirt, Ribbon Hair Tie, Ribbon Tie, School Uniform |
| Items | Katana |
| Personality | Carefree, Talkative |
| Role | Younger Sister |
| Engages in | Fighting, Swordsmanship |
| Visual novels | Main character - Debo no Subako |
| Voiced by | Marimo Rin |