Urban Undying Lord

Rising from a sea of blood, revived from extinction, as thunder cracks across the sky, Ye Xuan walks out of the blood sea...
PS: This book is of a dark genre, the protagonist is cold and ruthless, it is not a tale of sainthood, there are no kneeling women, the protagonist is extremely violent. This is the story of a great demon king's return to the city, perhaps... this book has what you desire.
Those of faint heart should not read this book, and neither should moral saints. Please consider carefully before falling into this pit, whether you want to read this book.