Fukasawa is hired out to repair a medical device at the hospital that is out of order. There, Fukasawa meets Rina, a girl who repeatedly escapes from the hospital. After that, Fukasawa hears that she has an intractable disease and has been hospitalized for a long time. Fukasawa goes to visit her Rina, but she is treated coldly. Fukasawa, who is worried about Rina, shuts himself up in her room and stares at the map as if she had made up her mind.