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She was named Naksu because wherever she went, a trail of heads followed. She performs the alchemy of souls, magic that can change people's bodies and souls, which is forbidden in Daeho, and ends up being chased. Naksu hurriedly abandons her body and attempts the alchemy of souls on a woman passing by. Jang Wook, the son of the King of Daeho, realizes that Mudeok's soul has been changed and helps her. Jang Wook wants to learn Naksu's martial arts and become a sorcerer, and Naksu, in the body of Mudeok, stays by his side so she can recover her strength.
Naksu casts one last spell to save her soul. Jang Uk looks for the only sorcerer who would dare to help him. Mu-deok gets taken under a new master.
When Mu-deok refuses Uk's proposal to form an alliance, he convinces her in other ways. Park Jin barricades Songrim to catch a spy.
Mu-deok sets the terms before beginning proper training. Uk discovers that Heo Yeom left him with a gift he must learn to claim as his own.
Uk suffers a fever and chills, much to Mu-deok's delight. The Crown Prince visits the Jang household, demanding a family heirloom and a show of respect.
Mu-deok and Uk arrive at a secluded, empty cabin. Jin Mu orders a body dump. Jin Ho-gyeong offers protection for Uk... at a cost.
Seo Yul and Park Dang-gu visit Uk at his training ground. Mu-deok pushes her student to the extreme. Jin Cho-yeon prepares a wedding gift.
The Prince encounters an illusion. Uk demands entry into Jinyowon. Gil-ju goes after Naksu to acquire a body.
Gil-ju stumbles into town to satisfy his hunger. Uk follows closely behind him. Rumors surface of Naksu’s comeback.
Jin Ho-gyeong looks for her long-lost child. Jin Mu devises a plan to help end that search. Uk and Mu-deok are driven apart.
Uk is given a book to read. Yul saves a girl at the market. Mu-deok goes through an intensive selection process to become a servant at Songrim.
Uk loses the will to train. Mu-deok makes a bet with the Prince. At Cheonbugwan, a line of blind girls await judgment.
An unusual death draws Park Jin’s attention. Uk learns of Naksu’s tragic past. Maid Kim sends Mu-deok on an errand to Cheonbugwan.
A sudden lightning strike causes damage to Cheonbugwan. Park Jin and Jin Mu dispute who's to blame. Master Lee takes Uk on a special fishing trip.
Uk faces his tenth and final opponent with a trick or two up his sleeve. Seo Yul keeps Mu-deok close. Jin U-tak plays a trick on his daughter.
Mu-deok is caught at the site of a bloody murder. Master Lee presents the royal family with a gift and a prophecy. So-i tracks down a blind friend.
Park Jin and Jin Ho-gyeong get into a heated dispute as they both lay claim to an artifact. Uk runs into the Prince while on the search for a shaman.
Mu-deok investigates Jin Bu-yeon’s true identity. Jin Mu convinces Jin Ho-gyeong to make a special announcement at an important assembly.
Trapped inside an enchanted force field, Mu-deok explores her newfound powers but soon learns of its drawbacks. So-i makes a deal with a soul shifter.
Uk comes up with a solution to break the force field that would require him to risk it all. Dang-gu and Cho-yeon make a startling discovery.
Love is in the air with a wedding on the way and Uk playing matchmaker. Jin Mu appoints an assassin to do his dirty work and become his scapegoat.
A search leads Uk into Jinyowon, where he runs into a mysterious woman who is planning an escape. Meanwhile, haunting visions of the dead trouble him.
Jin Ho-gyeong makes a family secret public. Jin Bu-yeon finds new shelter but realizes that her freedom is limited and time is running out.
A debate surrounding a secret wedding ends with a shocking announcement. Jin Ho-gyeong tries to summon Bu-yeon back by causing her excruciating pain.
Flashes of another's memory leads Bu-yeon to find out more about Uk's past heartbreak. News of a feared assassin's return shakes the whole kingdom.
Yul uncovers the mystery of his ill health as So-i becomes desperate to save him. Uk and Bu-yeon continue to hit barriers in their relationship.
While Yul bears the burden of a heavy secret, Uk investigates a conspiracy involving a mysterious animal that could cause a devastating drought.
To save a fatally injured mage, Uk gives Jin Mu a firm warning and asks Jin Ho-gyeong for help, who agrees to cooperate under one condition.
Go Won presents Uk with a choice. Jin Mu sets the next step of his plan in motion. Heo Yun-ok requests to meet Bu-yeon in private.
As the search for the ice stone continues, Uk reaffirms his alliances while Jin Mu prepares for battle with an army of loyal soul shifters.
Jin Ho-gyeong takes a risk to protect Jinyowon and its treasures from attack. Having had a glimpse into the future, Uk braces for the inevitable.
