Taikoubou's flying (and Hippo like) companion. He's known as a Reiju a spiritual Beast. He carries Taikoubou all around China helping him on his quest to defeat the temptress Dakki. He's very kind-hearted, and has lots of knowledge of the human world.
The ball that he always carries with himself is Ball of Rejuvenation. If the bearer of this ball is in jeopardy the ball explodes on its own and restores those around it to their maximum power level.
Sibuxiang can become empowered, getting stronger and gaining ability to absorb paopei power around him.