San Lang is a mysterious and charming character from the Chinese animated series 'Tian Guan Ci Fu' (Heaven Official's Blessing). Known for his enigmatic nature and captivating presence, he plays a pivotal role in the story. San Lang is later revealed to be the Ghost King Hua Cheng, a powerful and enigmatic figure with a deep connection to the protagonist, Xie Lian. His character is essential to the plot, providing both support and complexity to Xie Lian's journey, while exploring themes of love, loyalty, and redemption.