My weakness was exploited by my clingy stepbrother. He always looked at me with eyes that seemed to lick me, using aphrodisiacs and teasing games to bring me to orgasm again and again—a sex toy NTR. (Itsukaichi Mei JUFE-538)

Mei is a female student who has an adopted brother due to her parents' remarriage, and he always looks at her with a hateful gaze. Unfortunately, her affair with a teacher at school is exposed... Although Mei tries to appear strong, she is secretly given an aphrodisiac and relentlessly forced to have sex, causing her body to tremble uncontrollably until she finally succumbs. From that day on, Mei is immersed in intense pleasure and begins having sex with her hated adopted brother.