Alchemy of Souls (Season 1 & 2)

Set in the fictional country of Daeho, Alchemy of Souls tells the story of young mages dealing with heaven and earth as they struggle to overcome twisted fates. It centers on Jang Uk, a troublesome young nobleman who harbors a painful secret about his birth, and Mu-deok, an elite assassin whose soul becomes accidentally trapped inside a blind, physically weak servant. Together, they enter into a secret master-and-servant relationship to help Uk open his energy gates and master the forbidden soul-shifting magic.