Second State Councilor Lee Gyeongsik orders Cheolung to kill Taeha's teacher and royal grandson Seokgyeon. but Cheolung hesitates because Taeha is his former friend who saved his life.
Daegil and Taeha engage in a duel. Taeha saves Hyewon from getting raped. Eopbok, who was forced to return as a slave because of Daegil.
After running away from Daegil's house 10 years ago, she changed her name to Hyewon. Seonghwan sets Hyewon up to marry a widowed rich man named Choi.
Gu Wol Ryung, unable to remember his past, attacks Kang Chi. Ja Hong Myung is tormented as she watches the fight between her half-beast son and the divine beast Wol Ryung. Later, Ja Hong Myung takes refuge at the school and meets Yi Sun Shin.
Gu Wol Ryung suffers as a thousand-year demon. Jo Gwan Woong tells him Seo Hwa is the cause of all his misery and proposes a deal. Meanwhile, Dam Pyung Joon tells Kang Chi to remove his bracelet and defeat him in a real sword fight.
Ja Hong Myung is shocked to realize Kang Chi is her son. However, despite Jo Gwan Woong's persistent questioning, she pretends not to know Kang Chi. Meanwhile, Yeo Wool seeks out Bong Chool to find a way to rescue Kang Chi.
Kang Chi, chased by ninjas, accidentally enters a room and confronts Ja Hong Myung. She is impressed by him but soon orders him to be captured, even if it means killing him. Meanwhile, Chung Jo asks Yeo Wool if she knows that Dam Pyung Joon killed Kang Chi's father.
To find the suddenly vanished Yeo Wool, Kang Chi seeks out Wol Ryung in the forest. Kang Chi begins to fight Wol Ryung to save her. Meanwhile, Ja Hong Myung meets with Jo Gwan Woong, stating she wishes to buy one of his properties.
Gu Wol Ryung appears at the school and tells Kang Chi to give up on becoming human. After Wol Ryung attacks and vanishes, the school members mistake him for Kang Chi. Meanwhile, Ja Hong Myung summons Tae Seo and asks if he is one of Jo Gwan Woong's men.
Kang Chi is asked by Tae Seo to rescue Chung Jo. He worries about how Chung Jo will react to his half-beast nature. Yeo Wool comforts him, saying he is still Choi Kang Chi, regardless of his appearance. Meanwhile, the Hundred Year Inn staff hear that Chung Jo is to spend the night with Jo Gwan Woong.
Kang Chi and Yeo Wool are trapped in the room where the silver chest is hidden. Seo-bwagwan grows suspicious of the wall hidden behind a scroll. Meanwhile, seeing Yeo Wool's scar, Kang Chi remembers his childhood encounter with her.
Dam Pyung Joon accepts Kang Chi and Tae Seo into the Mu Hyung Do Gwan (martial arts school), and Kang Chi strives to become a formal disciple. Jo Gwan Woong, suspicious of the Hundred Year Inn's asset list, searches for a secret vault. Meanwhile, Yi Sun Shin and Dam Pyung Joon plot to retrieve 5,000 nyang of silver without Gwan Woong's knowledge.
Jo Gwan Woong, having framed Kang Chi for murder, orders his execution. At that moment, Yi Sun Shin appears, demands Kang Chi's release, and declares the punishment unjust.
Yeo Wool is deeply shocked to see Kang Chi transform into a half-human, half-beast before her eyes and reports it to Dam Pyung Joon. Kang Chi, unable to accept his hidden beastly nature, is tormented.
Enraged by Jo Gwan Woong's atrocities, Kang Chi's eyes turn red, and he lunges at him. Jo Gwan Woong frames Park Mu Sol for high treason and Kang Chi for murder.
Kang Chi and Yeo Wool are attacked by dark shadows. Kang Chi, unfamiliar with such opponents, is cut multiple times while fighting back. Hearing Kang Chi is injured, Chung Jo visits him out of worry, and they share an affectionate hug. Yeo Wool witnesses their embrace.
As the awakened Imoogi (serpent) coils up the pagoda, Sadam is ecstatic, claiming the dragon god is ascending. Jo Sang Heon and Moo Seok move to save Do Ha, while Lee Rin resolves to destroy the Imoogi.
Lee Rin confronts Park Soo Jong, who holds the royal seal. As soldiers attack Lee Rin, Sadam appears, threatening to kill the Queen Dowager unless Lee Rin hands over the seal.
Park Soo Jong threatens the Queen Dowager for the royal seal, warning of a bloodbath. Meanwhile, Lee Rin discovers the seal's location using a jade ring given to him by the Queen Dowager.
Park Soo Jong orders Lee Rin to be bound. As he's dragged away, Lee Rin shouts that the rebellion is reckless. The Queen Dowager warns Park that he will never get the royal seal if he harms Prince Wolgang (Lee Rin).