GVG-388 An obedient and masochistic older sister and a provocative and sadistic younger sister

When Hikaru is alone with her stepfather, she crosses the line between parent and child. One day, her older sister Haruka comes home and sees Hikaru and her stepfather having sex... When Haruka tells her stepfather about it, he tries to keep her quiet, and they end up having a relationship. A strange love triangle between the beautiful sisters and their stepfather is about to begin...