(from ebookjapan):

On his way back to his hometown, a Japanese village in Brazil, a young boy named Musashi, a master gunslinger, rescues a young child from the Aku Taichi clan. The village has been subjected to unreasonable demands and harassment from the clan.

The villagers are happy to see Musashi's return, but Evil Joe, the god of death, and Kowalski are called in to hunt them down. Musashi's gun of justice comes out in full force against Evil Joe and his clan, who are trying to steal the rights to the village's specialty, coffee!