Kai is a short, purple humanoid. His head is tall and slender, and has a row of fire on his forehead. His "hair" is a large, red ellipsoid with seven red spikes. He wears flaming red clothes and red shoes.
Kai's purpose is to put out a candle in Shi-chieng. He is the only character who can use the Water of Dreaming to put out the Candles of Life. He must do this and put out his own candle, killing him but fulfilling his life purpose.