Seika, who lives deep in the mountains of Nagano, has been secretly in love with her paternal uncle since she was a child. Her uncle lives in the city for work and is so busy with his daily work that he doesn't come home to visit his hometown for a long time, but Seika still thinks of her uncle and always masturbates to comfort herself while they are apart. One day, when she can no longer suppress her feelings of love, she tells her parents that her favorite singer's live concert is in the area where her uncle lives, so she doesn't want to waste money and so she goes to her uncle's house, and comes alone to her uncle's house in the city...