STARS-621 Lustful stepfather raped his wife's stepdaughter

Violet Kurokawa is dating Yosuke and will also get married soon after. When Yosuke introduced her to his father, and he suggested that the three of them live together, She didn't want to upset her future husband so she agreed, One day, when they started living together , Yosuke had an emergency and Violet was home alone with her father, and his father put an aphrodisiac in Violet's drink to rape her.