Vash the Stampede - His past is a mystery. Unbelievable rumors about him sweep through people as if a wind passes. He changed one of the Seven Cities into a mountain of rubbles, made a big hole on the Fifth Moon, and some say he was directly involved in the Big Fall, the crash of the spaceships, over a hundred years ago. There are many who doubt the existence of this half legendary figure. However, on the other hand, those few who had dealt with him closely tell of his true nature. His good nature is unparalleled but credulous. He hates conflicts. A crybaby who is a pacifist. Yet those rumors have just one thing in common. That is, he is superbly skilled in gun techniques. Once his gun is fired, no enemy remains standing. Conflicts end unquestionably. If there's one more thing that's certain about him, it's that this devil who wears a red coat is watching people's lives from a distance. He appears and disappears throughout the history of the planet. Are there many men who carry this name from generation to generation? Or is this one and the same person? His past is a mystery.
The World - Over a century has passed already since hundreds of immigrating spaceships had fallen on the planet. Under the scorching dual suns and hot sand raging in the wind, people barely survive on the surface of the planet, dependent on the technology left on the spaceships. In an environment exposed to severe thirst and hunger, what rules this harsh world are the most fundamental concepts of survival. In the smell of blood and gunsmoke, violence takes the shape of lead bullets and rules the land. Entrusting their lives to ugly but beautiful steel weapons, the scoundrels begin their feast again today...