A couple, Yuka and Kentaro, live in an apartment next to each other. - Unlike Kentaro, who is devoted to his wife, Yuka is exhausted by her husband's domineering behavior. - Kentaro cares about her, but as he becomes Yuka's confidant, he is unable to suppress the feelings he had for a long time and hugs her tightly. - Yuka opens her heart to Kentaro's fierce yet gentle embrace, and they end up having a physical relationship despite their status as families, and their relationship becomes more and more intimate with each passing day...