Rena, who lives in a mountainous area of Nagano Prefecture, has harbored deep romantic feelings for her paternal uncle since childhood. Her uncle continues working in the city, busy with his job and rarely returning home for long periods. Despite knowing this, Rena has silently cherished her love for him all along. However, one day, upon hearing that a concert by her favorite idol will be held near her uncle's residence, she can no longer suppress her emotions. Telling her parents only that she's going to the concert, she resolves to travel to see her uncle.