[From Mangacity]:

From the mind that brought you I'll comes a story set in a unique world of samurais and man-slayers reminiscent of the Japan of old. One man wanders the land with a deep past, a deep secret, and a "merciful" right hand...

A story featured in the manga, Crazy Kouzu BC.

When they were little, three friends, Kaya, Takashi and Hiroshi spent time with each other before fate separated them. Now two years later, they meet each other once again during one summer day.