Momoko is a beautiful young sword fighter who was born inside a peach. She lives with her constant companions—the dog god Inugami, the monkey god Sarugami, and the pheasant god Kijigami—in a peaceful paradise. However, a demon army led by devil king invades the paradise and steals the precious treasure that protects Momoko's land. To retrieve the treasure and save the people, Momoko embarks on a great adventure with her three companions.