Rena, who lives deep in the mountains of Nagano Prefecture, has been secretly in love with her paternal uncle for a long time. Her uncle lives in the city and has not been back home for a long time due to his busy work schedule, but she still thinks about him. One day, unable to suppress her feelings any longer, she tells her parents that she is going to a concert by her favorite idol in the area where her uncle lives, and comes to her uncle's house in the city...