Rika Mariri, formerly known as Narumi Urumi and now introducing herself as Riria Hirose, takes on her first-ever M-man bullying role! This is a completely unscripted, raw documentary with no prior rehearsal. Watch as Riria unleashes her full sadistic potential, dominating and tormenting her M-man target, with her S-levels rising higher throughout. Experience the intense realism as she passionately uses a strapon for the very first time in her life to forcefully dominate her partner. Also featured are her surprisingly perfect bondage looks, behind-the-scenes off-shots, and her personal thoughts after filming. "I had such a blast and got super excited—I think I might actually be more of an S after all♪," she confesses, sending a thrilling pang straight to every M-man's heart. A must-see release for fans!