Hasegawa Koyuki
長谷川 小雪
| Hasegawa Koyuki長谷川 小雪O | |
| Measurements | Height: 134cm, Weight: 34kg, Bust-Waist-Hips: 75-52-70cm |
| Hair | Brown, Short Bangs, Shoulder-length, Twin Braids |
| Eyes | Violet |
| Body | Short (obsolete), Small Breast Sizes |
| Clothes | Ribbon Hair Tie, Sailor School Uniform, School Uniform, Shimapan, Skirt |
| Role | Student Council Member |
| Visual novels | Main character - Black Gate -Kan'in no Gakuen- |
| Voiced by | Hikari |