He is the illegitimate son of the Emperor of Heaven. With impure blood, he was banished to the underworld and became its ruler. He prospered, commanding tens of millions of underworld soldiers, earning him the title of the King of Hell.
In a bid to break the curse of mortality, he wedded a woman with a pure Yin character, pledging in clear terms to leave all his properties to her upon his death. The condition was to accompany him until the end of his life, a seemingly unbearable task.
She accepted the deal! However, as time passed and her patience wore thin, he remained alive. It was a falsehood, a promise of a short-lived existence!