Resolved What's the novel's name?

I can't remember this novel name but I'm sure I've seen the translation somewhere. The protagonist was one of the Ten Supremes or some such name and an Alchemy Grandmaster. He was reborn in a youngster's body 15 years after he supposedly died and has disciples and lovers who he interacts with. It's a xuanhuan novel.

 

The eternal supreme

 

Thanks. It's also called Ancient One.