Mu-deok is the identity assumed by the powerful assassin Nak-su after her soul was trapped in a weakened body. Over the course of the series, she becomes the teacher of the protagonist, Jang Uk, and helps him improve his magical abilities while also dealing with her own struggles.
In the Korean drama “Alchemy of Souls,” Mu-deok, originally known as Nak-su, a formidable soul shifter and assassin, finds herself in a weakened state after a failed soul-shifting attempt. Her soul is trapped in the body of a blind woman named Mu-deok. Unable to perform magic and with her physical abilities greatly diminished, she is forced to hide her true identity and past.
As the story unfolds, Mu-deok encounters Jang Uk, the young and troubled heir of the prestigious Jang family, who is unable to perform magic due to a curse. Recognizing his potential and desperate to regain her strength, Mu-deok becomes Jang Uk’s secret teacher, instructing him in the ways of martial arts and magic under the guise of a servant.
Throughout the series, Mu-deok’s relationship with Jang Uk deepens, and she becomes a central figure in the fight against the dark forces that threaten the kingdom. Her journey is marked by personal growth, as she grapples with her new identity and the emotions that come with it. Despite the challenges, Mu-deok remains a fierce and determined character, dedicated to protecting those she cares about and seeking a way to restore her former powers.