Anjou Mika
安城 美香
| Anjou Mika安城 美香 | |
| Hair | Brown, Parted in Middle, Shoulder-length, Twin Tails |
| Eyes | Blue |
| Clothes | Apron, Knee-high Socks, Naked Shirt, Old Type School Swimsuit, Sailor School Uniform, School Uniform, Sport Bloomers, T-shirt |
| Role | Full Sister, Younger Sister |
| Visual novels | Main character - Tonarizuma |
| Voiced by | Ooshima Daria |