JUFE-538 The clingy stepbrother who always looks at me as if licking me all over has found my weakness. I am made to reach climax multiple times with aphrodisiacs and teasing play. This ultimate sex slave NTR is Kayumi Itsukaichi.

Mei, a high school girl, is always looked at with unpleasant eyes by the man who became her brother-in-law due to her parent's remarriage. Unfortunately, she finds out that she is dating a teacher at her school... Mei, who had her weakness seized, acted aggressively, but due to the aphrodisiacs she secretly added to him and her persistent teasing play, she gradually felt her body react with twitches, and then she came. From that day on, Mei became addicted to sexual pleasure, and contrary to her heart, she became addicted to sex with her brother-in-law, who she hated.