The series unfolds on the famed Musical Note Island, where a deity of music is rumored to dwell. The land shelters "instrument beasts," creatures birthed from sonic energy, each bearing parts of a musical instrument in their anatomy. One day a sorceress lands on the isle. The combatant girl Cara must embark upon a quest to vanquish her and restore tranquility to the island, to safeguard its harmony for future generations together.
