He Xuan is a Supreme-ranked ghost and one of the Four Great Calamities, bearing the title Black Water Sinking Ships. His domain lies in the South Sea — the Black Water Demon Lair. Disguised as Ming Yi, he appears as a pale-skinned man dressed entirely in black, with eyes said to resemble burning ice. In his true form, he has a demonic appearance with extremely pale skin, sharp features, and black robes woven with thin, shimmering silver waves. He Xuan is quiet, reserved, and prefers solitude. The only person he was truly close to was Shi Qingxuan, which is why he was often seen beside him while disguised as Ming Yi. Despite his cold and distant nature, he was skilled at maintaining the image of a god and hiding his true identity. Due to the trauma caused by starvation during his human years, he occasionally struggled with overeating. In his mortal life, He Xuan was a kind, devoted, and hardworking man who deeply cared for his family. He was honest and refused to bribe officials during the national exam, even when passing was his only hope of escaping poverty. He possessed great determination and adaptability, always trying to overcome tragedy through his own efforts. However, his suffering eventually changed him. He became someone capable of holding onto hatred for years, patiently waiting for the right moment to take revenge. After discovering Shi Wudu’s role in ruining his fate, he disguised himself as Ming Yi to get close to the brothers and carry out his plan. Despite his merciless actions toward those who wronged him, He Xuan is not truly evil. He understood that Shi Qingxuan was not the main cause of his suffering and gave him chances to escape his fate. He avoids attention, rarely interferes with others, and does not harm those who have done nothing to him. He Xuan is a rational and responsible person who believes in repaying what is owed. This is why, despite his past and cold nature, he eventually aided the heavenly officials and humans during the final battle.