Spoiler!
In the live action and the doungha he was dead for 16 but in the novel and (maybe) this he was dead for 13
He was brought back to life by someone named mo xuanyu 13 years ago before he died people were after him and tried to kill him because he cultivated using evil methods
He was brought back to life by someone named mo xuanyu 13 years ago before he died people were after him and tried to kill him because he cultivated using evil methods