Worried about Yuki, who had lost her husband, her daughter and son-in-law decided to live with her. Yuki began living peacefully with her mother-in-law and daughter and son-in-law, and was grateful for their consideration, but Kokoro down she was still feeling uneasy. Yuki and her son-in-law Kosuke had only had a relationship once in the past, and since then, Yuki had been hiding the fact, tormented by guilt. A betrayal of her beloved daughter and late husband. If it were discovered, everything would fall apart. She knew it in her head. But the thought of Kosuke living under the same roof made Yuki's Kokoro waver, and she couldn't stop the heat rising deep inside her body.