Koyomigawa Yoru
暦川 夜
| Koyomigawa Yoru暦川 夜 | |
| Measurements | Height: 172cm, Weight: 43kg, Bust-Waist-Hips: 77-51-78cm, A cup |
| Hair | Blue, Blunt Bangs, Hime Cut, Waist Length+ |
| Eyes | Blue, Tsurime |
| Body | Pale, Slim, Small Breast Sizes, Tall (obsolete), Teen |
| Clothes | Dress Shoes, Knee-high Socks, Miniskirt, Necktie, Panties, School Uniform, Shirt |
| Personality | Mysterious |
| Role | High School Student, Transfer Student |
| Visual novels | Main character - Kurenai Tsuki |