Momoko is a lovely young sword warrior who was born within a peach (momo in Japanese). She dwells in a serene paradise with her constant friends, the dog god Inugami, the monkey god Sarugami, and the pheasant deity Kijigami. A demon army headed by the devil king, on the other hand, invades the paradise and takes the valuable jewel that safeguards Momoko's realm. Momoko goes on a grand expedition with her three companions to recover the wealth and save the people.