Ai is a regular girl who also happens to be a dancer. Machi, her buddy and fellow dancer, is also a genius. Ai is often depressed when she sees Machi's talent. Ai, on the other hand, discovers Machi's secret: the existence of the Aguu, palm-sized beings that bestow genius aptitude on individuals who possess them. Ai becomes a "Savior" in order to save Machi, who has turned into a "Seamstress" who creates Aguu. The Saviors are a group of individuals who have fought the Seamstresses for decades.