APAK-158 These sisters, I'll drive them mad… The sister who was turned into a slave of perverted sex after being trained, and the beasts' next prey is the sister with an even more lascivious body... Umi Hirose Ai Tsukimoto.

Older sister Umi who was dominated by aphrodisiac SEX by Saffle. One day she finds out about her sister's existence. Her younger sister Ai is naive and proud of her big breasts. An older sister who can't resist her desire for aphrodisiacs, even though she is suspicious of Sefure who tries to contact her sister. Her younger sister will be sexually trained by her older sister's friend. Sisters who have tasted the effects of an aphrodisiac. The man's purpose was to sell not only her sister but also her sisters to an aphrodisiac and sell them to JK maniacs. What is the fate left for the semen-covered sisters?