A few years after marrying her husband Toru, Yuko, who still can't get close to her son-in-law Manabu, decides to take advantage of Toru's summer vacation this year to return to her hometown. Became….However, for Yuko, who is accustomed to her city life, living in a wooden house without an air conditioner was unimaginably hot. Her <sweat running down her neck> <sweat floating on her chest> <armpit sweat overflowing> The obscene sweat that colors her whole body drives her academic reason crazy, and she thinks of Yuko as her mother. I began to be conscious of myself as a single woman.