Ishidou Tatsumi
石堂 竜美
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| Ishidou Tatsumi石堂 竜美 | |
| Hair | Long, Parted to Side, Pink, Ringlet |
| Eyes | Garnet |
| Body | Big Breasts, Makeup, Nail Polish, Pale, Slim, Young-adult |
| Clothes | Bandages, Lab Coat, Skirt Suit, Turtleneck Sweater |
| Role | Bisexual, Older Sister |
| Engages in | Teasing |
| Visual novels | Side character - Denshanai de Now. |
| Voiced by | Sugihara Matsuri |