１９８６年、横須賀。芭月道場で生まれ育った芭月涼は、厳格な父のもとで芭月流柔術の腕を磨いていた。しかしある日、謎の男・藍帝に父を殺され、父が守っていた『鏡』を奪われてしまう。必ず事件の真相を解き明かすと決意する涼。しかし父の過去に通じる手がかりを追い求めるうちに、闇組織の抗争に巻き込まれてゆく……。横須賀から香港を舞台に、涼の長い旅が今始まる！

1986, Yokosuka. Ryo Hazuki has trained to master the Hazuki Style Jujitsu under his strict father in the Hazuki Dojo from his childhood. However, one day a mysterious man named Lan Di murders his father and takes the “mirror” his father was protecting. Ryo is determined to find the truth behind his father’s murder, but soon finds himself getting stuck in a war between the underground organizations…. Traveling from Yokosuka to Hong Kong, Ryo’s long journey begins!