Umakai Shintarou
馬飼 新太郎
| Umakai Shintarou馬飼 新太郎 | |
| Hair | Brown, Short |
| Eyes | Brown |
| Body | Pale, Slim |
| Clothes | Bow Tie, Glasses, Suit, Trousers, Vest |
| Personality | Friendly, Honorable, Pacifist |
| Role | Teacher |
| Engages in | Fighting |
| Visual novels | Protagonist - Lime Iro Senkitan ~Meiji Nippon, Otome Sakimorisu.~ Protagonist - Lime Iro Jankitan ~Meiji Nippon, Otome Sakizumosu.~ |
| Voiced by | Miki Shin'ichirou (PS2 ver) |