The ordinary girl Ai is a dancer that can be found everywhere. She has always been depressed by watching her friend Machi show her talent as a dancer, but one day she discovered the "secret" of Machi's talent. That is the existence of "bad dolls", geniuses who have been transformed into the size of a palm by an evil spell. Anyone who holds a bad doll can become a genius. In order to save Machi, who has become a "tailor" who makes bad dolls, Ai becomes a "savior" who has been against tailors for generations.