In Japanese boxing, the blue corner of the ring is typically assigned to the lower-ranked fighter. It¡¯s the domain of the underdog, and Nobuto Urita (Kenichi Matsuyama) knows it well.

An aging pro on a permanent losing streak, Nobuto can analyze fights in meticulous detail, but he seems incapable of winning one himself. By day, he works as a trainer at a scruffy gym, where he teaches fitness classes to middle-aged women and conceals his inner regrets behind a veil of good humor.

Those disappointments include the fact that he¡¯s been eclipsed by his old high school pal, Kazuki (Masahiro Higashide), who looks set to become the gym¡¯s first champion in decades and has won the affections of Nobuto¡¯s childhood sweetheart, Chika (Fumino Kimura).