Black Belt

A top student and 7th Dan JKA Shotokan karate practitioner, Taikan embodies skill and intense determination. He pursues victory through bold duels, but his choices trigger tragedy and strain among the group; ultimately he seeks to understand his master's style and earns Giryu’s respect as a true successor.

A gifted fighter who embodies restraint and loyalty, Giryu fights to defend innocents and uphold the master's teachings. Targeted by the occupying forces, his courage helps reunite the trio and secure the belt’s true legacy.

A senior pupil who acts as a steady voice of balance among the trio. He emphasizes discipline and loyalty, navigating the occupation while upholding the academy’s ethical code.

The master whose legacy drives the plot; his death before passing the belt sparks the students’ divergent journeys. Revered for his technique and philosophy, his teachings continue to guide Taikan, Giryu, and Choei.

A Japanese Army captain leading the detachment that invades the Shibahara dojo. He epitomizes the occupying power’s coercive authority, and the ensuing conflict strains families and communities around the dojo.

A brave boy who befriends Giryu and Taikan, aiding their cause and rescuing Hana when danger arises. His courage and loyalty anchor the human stakes of the conflict.

Kenta’s elder sister who becomes entangled in the gang’s plots and faces abduction threats. She endures danger but ultimately finds safety through the fighters’ efforts.

Hana’s father who shelters his family from gang harassment. His steadfast protection provides a domestic anchor for the fighters’ broader struggle.