| Shimizu Aina清水 愛菜 |
| Hair | Blue, Ponytail, Side Tail, Straight, Waist Length+ |
| Eyes | Teal |
| Body | Big Breasts, Pale, Slim, Teen |
| Clothes | Miniskirt, Nurse Uniform, Ribbon Hair Accessory, Tank Top, Torn Clothing, Waitstaff Uniform |
| Personality | Brother Complex, Friendly, Jealous, Kind |
| Role | High School Student, Non-blood-related Sister, Part-time Worker, Younger Sister |
| Engages in | Cooking, Reading |
| Visual novels | Main character - Onii-chan!! Shasei no Kanri wa Imouto ni Makasete!! |
| Voiced by | Himekawa Airi |