Stunningly beautiful Eriko, with her elegant figure and refined features, appears unapproachable—like a flower on a high mountain. But this only ignites the sadistic desires of our entire crew. Driven by a genuine urge to dominate, we launch an all-out assault to transform her into a true masochist. In the bathroom, dressed in a school swimsuit, she's playfully tormented with water guns and showers, then made to fully take a wall-mounted dildo into her mouth for intense blowjob training. Back in her uniform on the bed, she masturbates with a vibrator, casually teasing herself with stationery while we fondle her body. After thorough cunnilingus, we finally proceed to the long-awaited penetration. Moaning intensely, Eriko undergoes a complete transformation—becoming a perverted, gorgeous, and utterly submissive female masochist.