Nakazawa married Sumire, a woman much younger than him, through an office romance, enjoying a blissful newlywed life with his young and adorable wife. However, after marriage, he began experiencing impotence, causing their sex life to deteriorate. One day, he unexpectedly reunited with Ikeda, his former boss at work. As they caught up, Nakazawa opened up about his struggles in his marriage. Ikeda then proposed a spousal swap—exchanging his wife Risa and Sumire—for a swinging arrangement. Will this spark a new relationship? Watch closely as events unfold.