In modern-day Japan, in the heart of the massive metropolis of Tokyo, Aoki Ekei grew up in the fold of the yakuza crime syndicate led by Yoshiro Sagara. The Sagaras, hailing from a long line tracing back to feudal Japan, hold onto their members-some literally owned by the crime family, like Aoki himself-with an iron fist of tradition and fear. To leave the yakuza means meeting a certain and violent death.
The obedient dog Hideo "Shinobu" Ekei, Aoki's father, along with his wife and Aoki's mother, planned to leave the crime syndicate. It was unavoidable that Aoki found them killed, along with his girlfriend, with himself narrowly avoiding the Sagaras' blades. With no recourse, Aoki flees to the countryside.
That is, until he met the ancient spirit of a samurai long ago betrayed and killed by the ancestor of the yakuza leader.
Follow Aoki Ekei in a story that blends past and present as he collides with a burning desire for revenge that crosses time, and learns the inevitable price of revenge: death.
