Akito Hayasaka (Ren Nagase) is a talented artist. He is working hard to be accepted for the Nika Exhibition, but a tumor is discovered in his heart and he is told that he has one year left to live. Akito Hayasaka doesn't express his emotions on his diagnosis. One day, on the hospital rooftop, Akito Hayasaka meets Haruna Sakurai (Natsuki Deguchi), who is painting. Haruna Sakurai tells him that she has only half a year to live. Akito Hayasaka gets attracted to her more and more, but he doesn't tell her about his condition.