Wife Yuki (pseudonym), 28 years old, has no children. She works as a tutor, having first discovered her passion for teaching while attending a prep school for university entrance exams, where she met an instructor who inspired her. After getting accepted into university, she began working part-time at a cram school, eventually becoming a full-time teacher after graduation. She started dating a senior colleague, three years her senior, and married him a year later. Her husband is serious and dependable, but harbors an unusual sexual desire. Before their marriage, he confessed this fetish to her—and that confession became the reason she first appeared in adult videos. Over four years and four months have passed since then. Now, accepting her husband's second request, she embarks once again on a journey to film another AV. His words to her: "Before we have a child... just one more time, please..." For the sake of the man she loves, this married woman spreads her legs for another man. Her emotions, her devotion, and the hidden reasons buried deep within her heart are revealed here. Through a two-day, one-night journey, this film deeply explores the inner world of a wife.