Kazuma kills his father in order to protect his mother and younger sister from violence. He begins life at a halfway house with an aim toward social rehabilitation and also works diligently at a scrap mill, but society has labeled him a “murderer”. Gradually, Kazuma loses hope.
Natsumi is proposed to by Yamato, a man who aims to become a fisherman to succeed his father. Her grandmother Kiyo, who raised her since a young age, broke her legs and uses a wheelchair now. Kiyo lives in a facility where Natsumi visits to tell her about the wedding. Natsumi suggests the idea of Kiyo walking along the wedding aisle with her, which encourages the week Kiyo. With that mindset, Kiyo regains hope and try to get better with the help of Natsumi