Oikawa Sayoko
及川 小夜子
| Oikawa Sayoko及川 小夜子 | |
| Hair | Pink, Shoulder-length |
| Eyes | Garnet |
| Clothes | Sundress |
| Role | Ojousama |
| Visual novels | Main character - Natsuiro Kouen ~Denpatou no Shita de Ai o Kataru~ |
| Voiced by | Matsuda Risa |
| Oikawa Sayoko及川 小夜子 | |
| Hair | Pink, Shoulder-length |
| Eyes | Garnet |
| Clothes | Sundress |
| Role | Ojousama |
| Visual novels | Main character - Natsuiro Kouen ~Denpatou no Shita de Ai o Kataru~ |
| Voiced by | Matsuda Risa |