In the distant future in a magical place called Cahmpon City, a mad scientist creates an enigmatic acoustic life form called Noiseman. Noiseman erases all music from the world by transforming it into crystals with a group of biker kids under the spell of Noiseman. But the kids see the light when they encounter the Music Tree. As they suck the juice of the tree’s fruit, the city begins to transform and they are once again able to sense the joy of music. Can they defeat Noiseman and recover the true music and harmony of the soul?