In his thirties, he studied dance and was very handsome. He entered the film and television circle very early, worked as an actor and producer, and later became a star agent, which once served as a bridge for many Hong Kong and Taiwan artists to enter the mainland market. According to a person from Kyushu Yahua Company, Sharla Cheung signed a contract with Kyushu Yahua in mid-2003, and Liu Yonghui was the company's vice president at that time. It can be said that he brought Sharla Cheung to the mainland and returned to art. At that time, they were already lovers.

In March 2004, Liu Yonghui left Yahua, while Sharla Cheung's agent was still in Yahua. Later, Liu Yonghui joined Stellar, and a person in Stellar told reporters: Sharla Cheung often came to the company to find Liu Yonghui, and then they left together.