Mitsuka Aya
三塚 亜矢
| Mitsuka Aya三塚 亜矢O | |
| Measurements | Height: 143cm |
| Birthday | 5 February |
| Hair | Blue, Shoulder-length, Spiky Bangs, Twin Tails |
| Eyes | Blue |
| Body | Pale, Slim, Teen |
| Clothes | Coat, Glasses, Miniskirt, Scarf |
| Personality | Shy |
| Visual novels | Side character - Mune Kyun! Heartful Cafe Main character - Mune Kyun! Yunikko Mahjong |
| Voiced by | Kaibara Elena (DVDPG Version) Takamura Mizuho |