IESP-555 Sister substitute rape, dew drop, bud

The sisters, who lost their parents at an early age and had no relatives, were adopted by a painter. Her older sister, Tsubomi, who got a job at the advice of her father, and her younger sister, Shizuku, who let her go to school. However, this family was not amicable. A father who plays with Shizuku with his distorted affection. A younger sister who endures alone so as not to worry her older sister. And finally, her older sister, who has seen her sister's innocent appearance, protects her sister!