Kaho is 27 years old, her husband is 31. They've been married for four years and have no children yet. They first met when they were both working part-time at a girls' bar during college, and continued staying in touch after graduation. During the pandemic, their relationship deepened by chance, eventually leading to marriage. However, sometime after getting married, her husband's sexual preferences drastically changed—he could no longer get aroused unless he experienced cuckolding. Reluctantly, at her husband's desperate pleading, Kaho agrees to let an unknown man take her. In her first experience, she stands before the mirror in the bathroom, gazing at her own reflection as a man gropes her breasts from behind, taunting her. Unable to suppress her arousal, she's lifted onto the sink, her pussy licked until she writhes in torment, then taken from behind. Having sex while watching her lewd reflection in the mirror becomes a new experience for her, culminating in allowing creampie ejaculation before finishing.