Hina Serizawa has felt stronger pleasure from anal sex than from regular intercourse ever since losing her virginity. Queen Kanazuki Rammy subjects her to a series of vicious anal stretching toys, gradually widening her anus step by step. Throughout this process, Hina's body builds tolerance and grows increasingly sensitive to new sensations. Next, a soft vaginal vibrator is introduced, rhythmically stimulating her sphincter muscles and triggering intense physical responses. This pleasure extends beyond the physical, amplified by the humiliation of being watched from within, drawing out deeper layers of her emotions.