Getting married at the desired age, having her own home, having a caring husband who always understood her. Hikari thought she would live a happy life for the rest of her life. But when living together, becoming a family, it was clear that she loved Kota very much but felt extremely ashamed when her husband saw her naked. That feeling grew and she kept refusing every time her husband wanted to make love to her. And someone appeared to break up Hikari's heavy, deadlocked life. That person was Yamamoto, Kota's boss. Once when Kota was drunk, Yamamoto had to take him home and had a short talk with Hikari. Her impression of him was quite good, a straightforward, kind person mixed with a feeling of loneliness. The next day, because she forgot her business card box, Yamamoto came to get it. It was very hot outside so Hikari invited him inside for a cup of tea. During this time, the two talked to each other more. Hikari told him about her life and the feelings she had when being intimate with her husband. Yamamoto also shared that his ex-wife had an affair with someone else. He found out but did not tell her, but instead divorced her, taking all the pain upon himself. From then on, Hikari immediately felt the difficulties, loneliness, suffering as well as the maturity, experience, and manliness of Yamamoto. On the occasion of her husband's two-day business trip over the weekend, Hikari invited Yamamoto to her house for a drink. While drinking, Hikari suddenly confessed and took the initiative to kiss him. She was also surprised that she did so. It seemed that Yamamoto did not refuse. Thinking so, Hikari took the initiative even more. Even though it was only for a short time, she wanted to be by his side, to warm his cold heart, to bring him joy, and to be his wife...