San'ya Kei
山谷 圭
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| San'ya Kei山谷 圭 | |
| Hair | Black, Blunt Bangs, Hime Cut, Long, Straight |
| Eyes | Black |
| Body | Kid, Medium Breasts, Mole, Pale, Slim |
| Clothes | Headband, Knee-high Socks |
| Subject of | Nymphomania |
| Visual novels | Main character - Yagai Gakushuu 2 |