Talented college-bound student Ryo Narushima murders his parents and is sent to a reformatory where he trains in karate under Kenji Kurokawa, a prisoner who tried to assassinate the Japanese Prime Minister. Two years later, Ryo is released and becomes a violent professional fighter.
Gwan gai
A former prisoner, released after serving time for his parents' murder, discovers a new sense of purpose and talent in the intense sport of professional kickboxing.