1 Month Like Summer Vacation(2008)

Ever since bike messenger Junya lost his pro cyclist father in a traffic accident one year ago, he's spent his days in lethargy. While out on a delivery, he spots a man, Shintarou, considering jumping from the roof of a building. By chance, the two meet later on after an accident caused by Shintarou sends Junya to the hospital. From there starts the story of their ill-fated friendship.