Hua Cheng, also known as San Lang, is a central character in "Tian Guan Ci Fu" (Heaven Official's Blessing). He is a powerful and enigmatic ghost king, revered in the ghost realm for his strength and feared by both humans and ghosts. Hua Cheng is deeply devoted to Xie Lian, the main protagonist, whom he has admired and supported for centuries. Known for his striking appearance, including an eye patch and silver butterflies, Hua Cheng's loyalty and mysterious past play a crucial role in the unfolding events of the series.