Yuuki Sayaka
結城 沙耶香
| Yuuki Sayaka結城 沙耶香 | |
| Hair | Blond, Long, Shoulder-length |
| Eyes | Green |
| Clothes | Pendant Necklace, Shorts, Tank Top |
| Personality | Immature, Talkative |
| Role | Full Sister |
| Visual novels | Main character - Natsukage |
| Voiced by | Nagasaki Minami |
| Yuuki Sayaka結城 沙耶香 | |
| Hair | Blond, Long, Shoulder-length |
| Eyes | Green |
| Clothes | Pendant Necklace, Shorts, Tank Top |
| Personality | Immature, Talkative |
| Role | Full Sister |
| Visual novels | Main character - Natsukage |
| Voiced by | Nagasaki Minami |