Hello! This is Koiwai Yotsuba, Yotsuba Koiwai...um, YOTSUBA! Yotsuba moved with Daddy to a new house from our old house waaaaaaay over there! And moving's fun 'cos people wave! (Ohhhh!!) And Yotsuba met these nice people next door and made friends to pl

After a nuclear war turns most of the Earth into desert wastelands, surviving humans had used the sands in order to survive. One of them is a professional mercenary named Sunabozu, who makes a living by hiring himself out to anyone who needs his talents.