Shiha shibari refers not to the shame of being bound, but to the state of becoming aroused, wet, and excited despite being restrained, violated, and verbally abused. Nami Hoshino is blackmailed by a fellow teacher who has discovered her weakness, forcing her into complete submission. With a gag ball in her mouth and her legs spread in a tight M-shaped bondage, she is taken from behind on all fours. Her hands are tied behind her back as she undergoes relentless deep throating. The pain she once hated transforms into pleasure through the sensation of the rough ropes. Ultimately, she falls into rope hypnosis, begging, "Please treat me more kindly," as the female teacher degenerates into a lustful, depraved woman.