The Hosoda family decided to move into a new apartment upon getting married. However, soon after moving in, his wife went on a trip with friends, making life in the new place lonely. While introducing himself to the neighbors, he met Kana, the wife of the Mito family living next door... Hosoda had been captivated by her seductive charm since their first meeting and, sensing his feelings, ended up having unprotected sex with her. From then on, days filled with unprotected sex in various places began...
