Buuuuuuuuuu -

In a world where sound was the only currency, a small, vibrating orb named Buu, who could only hum "BUUUUUUUUUU," was feared for his noise in the silent valley where he lived. When a magical winter froze all other sounds into dangerous ice, Buu's constant, resonant vibration broke the silence and thawed the valley, teaching the villagers to find warmth and joy in his song.