| Koishikawa Tamami小石川 玉美A |
| Measurements | Height: 154cm, Bust-Waist-Hips: 89-57-84cm, F cup |
| Birthday | 25 September |
| Hair | Ahoge, Blond, Braided Headband, Bun, Ponytail, Twin Tails, V Bangs, Waist Length+ |
| Eyes | Blue, Tareme |
| Body | Big Breasts, Fang, Pale, Slim, Teen |
| Clothes | Apron, Bikini, Detached Sleeves, Garter Belt Stockings, Kimono, Miko's Dress, Miniskirt, Panties, Puffy Sleeves, Ribbon Hair Tie, Ribbon Tie, School Uniform, Thigh-high Stockings, Towel, Vest |
| Items | Shamisen |
| Personality | Watashi |
| Role | Childhood Friend, Class President, Girlfriend, High School Student, Honor Student, Kanban Musume, Neighbor |
| Engages in | Summoning |
| Visual novels | Main character - Hanairo Heptagram |
| Voiced by | Fujimori Yukina |