Ryutaro Ninomiya, 27 years old, lives a fairly simple life. He works at an auto-repair shop, reads books and drinks a few beers. One day, he receives a phone call from Yusuke, his childhood friend whose mother, Ryuko, is dying from Hepatitis C. Despite knowing for a while that Ryuko was sick, Ryutaro hasn't visited her, but today he decides to go.