In Yokosuka, 1986, Ryo Hazuki, the only legitimate heir of the Hazuki Dojo, spends his days training under his strict father Iwao. One day, he returns and witnesses a mysterious man called Lan Di attacking the Dojo.

Hazuki Family's maid Ine hands a letter to Ryo, who is restless from his Father's death. The letter was sent from a person named "Yuanda Zhu" to his father which contained characters he cannot read.

To unveil the truth behind his Father's death, Ryo heads to Hong Kong, looking for a person named "Lishao Tao". His bags are taken as many thugs and thieves walk the streets of Hong Kong since everyone is desperate to survive day by day.