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.

Ryo finally finds a person who can read Yuanda Zhu's letter, which said "Find Master Chen for help". Ryo finds Master Chen and asks him about Lan Di, the man who murdered his Father.

Ryo finds a book written by Yuanda Zhu in Xiuying's library. In the book he finds a memo of chawan sign, which could lead to danger with one mistake. Despite the danger Ryo uses it to find Yuanda Zhu.

To find Yuanda Zhu, Ryo follows Ren, the leader of Heavens. Gathering information from Ren's acquaintances they reach the location where Yuanda Zhu is said to be, but they soon find out that this was Yellow Heads' trap.

Ryo finally reaches Lan Di, the man who murdered his Father. Blinded by revenge Ryo viciously attacks Lan Di. Lan Di easily dodges Ryo's attacks and leaves. Yellow Heads' Dou Niu realizes his plan has failed and attacks Ryo.