Mizuki Ririko
水城 りりこ
| Mizuki Ririko水城 りりこ | |
| Hair | Brown, Long, Twin Tails |
| Eyes | Brown |
| Body | Medium Breasts, Pale, Teen |
| Clothes | Choker, Collar, Detached Sleeves, Garter Corset, Miniskirt, Sweater, Thigh-high Stockings |
| Personality | Arrogant |
| Role | Dominatrix, Full Sister, Younger Sister |
| Engages in | Bullying |
| Visual novels | Main character - Imouto-sama no Oose no Mama ni Side character - Masoluv |
| Voiced by | Ayahane Yuzuko |