A young man decides one day to start killing yakuza. After he kills his first two he gets roped into helping a wannabe gangster and his bumbling underlings to perform a hit. While things work out in the beginning, this young psychopath quickly becomes more trouble than the gang expected. Will they be able to rid themselves of him, or will they be his next victims?

Wada, a salary man, is enlisted to venture off to China to investigate a potential Jade mine. After his arrival, Wada encounters a violent, yet sentimental, yakuza, who takes the liberty of joining his adventure through China. Led on their long and disastrous journey to the mine by Shen, the three men come across something even more magical and enticing.

Dangerous street fighter Kazuyoshi Tamai finds out that his rival, Takeshi, is the leader of a gang responsible for a series of assaults. Kazuyoshi is ready to face off against Takeshi, but comic challenges keep his nemesis out of reach. It's not until years later -- when Kazuyoshi becomes a championship boxer and Takeshi is a pro wrestler -- that they meet again in a battle that pits two combatants with very different fighting styles.