Hoshikawa Ruka
星川 瑠歌
| Hoshikawa Ruka星川 瑠歌O | |
| Measurements | Bust-Waist-Hips: 75-52-75cm, A cup |
| Birthday | 18 October |
| Hair | Blond, Twin Tails, Waist Length+ |
| Eyes | Green, Heterochromia, Violet |
| Body | Pale, Slim, Teen |
| Clothes | Ribbon Hair Tie, School Uniform |
| Visual novels | Main character - Hoshiful ~Seitou Gakuen Tenmon Doukoukai~ |