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A promotional video for Sompo Himawari Life Insurance to promote their Insurhealth service.
Yuichi is a teenage boy who was diagnosed with hepatitis; and as staying at the hospital is boring, he often sneaks out at night to hang out with his friends. However, each time he is caught by the slightly sadistic nurse Akiko, he just prolongs his stay at the hospital. After his most recent escape, instead of striking a punch or kick at Yuichi, Akiko says that she'll overlook his sneak outs if he becomes friends with 17-year-old Rika, another hospital resident. Rika doesn't open up to him at first, but she has her reasons: she has a weak heart; and though she may come off as selfish and rude, Yuichi looks beyond the surface to help both of them enjoy what life has to offer.
In the distant future a girl was used to recreate a lost city in virtual space. Due to being hospitalized for an incurable disease, Sachi becomes lonely but still falls in love with a boy, Ryou, who goes to school as she watches from her hospital window. She's confused by a tingling new emotion and the lines of reality begin to blur as she subconsciously tries to pull him into the digital world.