Somewhere unknown
The owner of those pairs of silver eyes met the man covered in black all over him. This is the man who gave An Ziwei the ability to use the curse of life exchange.
The man in a black cloak said, "I've caused the death of one of your clones. I'm sorry."
The man's tone is full of remorse. His original plan was to use half of Hei Xiaojing's soul alive in An Ziwei's body. That's why he sealed his half-soul. He didn't expect that the wardens would be able to, with the help of Lord Juedi, the soul-ripping scythe of the God of Destruction. It was because of this that the seal he placed on that half-soul broke and freed that soul.
The curse of life exchange wasn't supposed to be completed. He never had any intention of harming any clone of the person in front of him.