She was created from a music box by Professor Tomoe. Her attacks include shooting energy waves and playing albums to create giant musical notes to attack her enemies. Eudial took Chikuon with her as she extracted the Pure Heart from the host of a fancy party, which the Sailor Senshi were attending. Chikuon attacked them, but her album player was destroyed by Tuxedo Mask. Sailor Moon destroyed Chikuon with Moon Spiral Heart Attack.