A 21-year-old university student lost her boyfriend in a sudden accident and she can't get over him, but she begins to change thanks to her family and her friend Takumi, who shares a very similar past with her.
Two 17 year old teens are hospitalized for different reasons. Ezaki suffers from Hepatitis A, while Akiba is due to a weak heart. The relationship between these two hospital patients soon blossoms into romance.
