Cosmos and Chaos - the interval between the two gods was called Rhythm.
Rhythm gave birth to Crystals that rule the music, and the world was filled with sound.
However, harmony was disturbed by the forces of Chaos, and the Crystals started losing their light.
For the sake of returning light to the crystals, the wave of music 'Rhythpo' had to be stronger.
The journey to protect the music now starts for the Warriors guided by the Crystals.