Seo Hwa is accused of being the daughter of a traitor and is sent to the ginseng house with her brother and servant. Seo Hwa refuses to become a ginseng and is tied to a tree half dressed to be humiliated in front of everyone. At the same time, the gumiho protector of the woods seems to fall for her, and wants to help her. But Jo Kwan Woong (the villain, who killed her father) wants to bed Seo Hwa...what will happen to her ?

Seo Hwa and her brother escape. She fails and is saved by Wol Ryung. Seo Hwa stays in the woods with Wol Ryung and fall in love. Wol Ryung in order to stay with Seo Hwa learns he can become human but must endure not using his powers. Meanwhile the authorities are still looking for Seo Hwa. Seo Hwa is caught and Wol Ryung turns into a Gumiho in order to save her. Frighten Seo Hwa tells the police where Wol Ryung's hideout is. Wol Ryung is killed and dies in her arms and tells her he loves her.

Seo Hwa gives birth and gives her baby to So Jung. He is adopted by a family, who becomes prosperous. The rich family owns the Hundred Year Inn who have a daughter (Chung Jo), Kang Chi falls in love with Chung Jo. At the same time, Yeo Wool arrives in town. She travels and fights as a guy, and is often mistaken for one. She meets So Jung, and he predicts her that she will meet her fated love, but must avoid him at all cost. In the evening, she meets Choi Kang Chi.

Choi Kang Chi is rescued by Yeo Wool and Gon Yi. Despite being warned not to return by Madam Yoon, upon hearing that his 100 Year Inn family is in trouble, Kang Chi arrives just in time to stop Jo Gwan Woong from creating more of a commotion. In order to avoid any offense being taken, Moo Sol visits Gwan Woong when he returns but he is already aware that Gwan Woong is after the inn. That night there is a surprise attack in the 100 Year Inn.

After fighting with the illusionist assassin that was sent by Jo Gwan Woong, Kang Chi captures him and he is taken by the guard for questioning. Dam Pyeong Joon (Yeo Wool‘s father) introduces a high ranking Navy commander to Moo Sol in order to convince him to invest on warships. Upon hearing about Moo Sol and the commander’s private meeting, Gwan Woong uses his captured man as an excuse to have the authorities search the inn where they find a letter with the sign of a rebel group.

All the family members of Hundred Year Inn get arrested. Kang Chi is taken away by monk, but he comes back to save them. He is successful in taking away Tae Soo and hides him at a safe place. But is blocked by soldiers when going for saving Chung Jo and his bracelet tears away. He is transformed into his real gumiho self. Yeo Wool also sees this.

So much happened during that episode, starting with Kang Chi's transformation. At the same time, Chung Jo arrives at the ginseng house which hadn't changed at all. She faces the same fate Seo Hwa did and is tied to the shame tree. Episode ends with Kang Chi being arrested.

Admiral Lee Soon Shin unexpectedly frees Kang Chi. Meanwhile, Tae Seo was being hypnotized to believe Kang Chi murdered his father. Kang Chi decides to free Chung Jo from the ginseng house, but she asks him to prove her father’s innocence first. He finally decides to become human, and leaves town with Yeo Wool. They go back to Yeo Wool's father's place, but this is also where Tae Seo is living...

Tae Seo tries to kill Kang Chi, and would have succeeded without Yeo Wool. They go on an expedition to the Hundred Year Inn, to try and get the money back. And finally, Kang Chi realizes that Yeo Wool is a girl!!

Yeo Wool is sick, trapped in the hidden place at the Hundred year Inn with Kang Chi. They have to get the treasure out while Tae Seo and Gon are fighting the soldiers outside. Will they manage to give it to the Navy? Meanwhile Jo Gwan Yoong is harrassing Chung Jo at the gisaeng house...

As Jo Kwan Woong wants to bed Chung Jo, Kang Chi decides to rescue her, with the help of Yeo Wool.

As Tae Seo has taken off Kang Chi's bracelet, he becomes a gumiho again, and Chung Jo gets seriously scared (actually she has the same reaction as Seo Hwa, as usual). Kang Chi then searches for Yeo Wool, because she has a bracelet, and realizes he still wants to become human.

Kang Chi feels a strange presence in the forest so he asks Gon to help him patrol but not to tell anyone about it. Because of his night-disappearances, others in the academy become suspicious of Kang Chi, since they don’t trust him after they saw his gumiho form. When he is paroling the forest, one of the students follows him in where they have a close encounter with Wol Ryung. Chung Jo becomes a state ginseng and is the Flower Ginseng for the Lamp Festival.

Kang Chi and Yeo Wool stay out all night. When they return, they find out that Elder Kim has been killed and students are once again skeptical about Kang Chi’s nightly outings. Worried about Yeo Wool’s closeness to Kang Chi, Master Dam reveals his plan to marry her to Tae Seo. Kang Chi realizes that the reason he won’t turn back to his gumiho is because Yeo Wool is by his side. Wol Ryung finds out that Kang Chi is his son.

Wol Ryung finds Yeo Wool in the forest and reveals to her that the one that killed Kang Chi’s father is her own father. Tae Seo successfully convinces Jo Gwan Woong that he has betrayed the other side in order to save his sister. Kang Chi is given a challenge by Gon to protect the bells on a belt he gave him for the next three days, and he also reveals that he is a Master with the apricot symbol. Yeo Wol is put into lock down to learn wifely duties.

After Master Gong Dal is attacked by Wol Ryung, Kang Chi decides to take the bell challenge seriously in order to prove his determination about staying in the academy, since everyone is suspecting him for the attack. In order to stop the rumors of him being a monster, Kang Chi goes to the 100 Year Inn to show everyone if he changes when he takes off his bracelet.

Yeo Wool is kidnapped by Jo Gwan Woong's men. Kang Chi rushes to find her, but she is rescued by Wol Ryung. They meet in the forest. Wol Ryung asks Kang Chi to abandon his dream of becoming human. Kang Chi fights with his father. He begs not to harm Yeo Weol because she is his person. That brings back some memories and emotions to Wol Ryung. Kang Chi and Yeo Wool kiss. Jo Gwan Woong is suspicious about Seo Hwa and wants Chun Soo Ryun to confirm her identity. Kang Chi meets Seo Hwa.

Kang Chi, Yeo Wool and Gon escape from the 100 Year Inn after stealing the map without being caught and take refuge in the Giseng House where Kang Chi finds out that Chun Soo Ryun is one of the Four Masers with the orchid symbol. She gives him a challenge and reveals she knew his mother. Kang Chi finds out that the one that killed his father was Master Dam.

Choi Kang Chi is captured and tortured by Jo Gwan Woong. Seo Hwa reveals her identity to Jo Gwan Woong. Seo Hwa saves Kang Chi but he finds out she is his mother who abandoned him at birth.

Wol Ryung returns to find the person that made him into a demon but Jo Gwan Woong informs him that it was Seo Hwa. Meanwhile, Kang Chi goes through extensive training with Master Dam. There is a mutiny in the 100 Year Inn and Seo Hwa is set to return to Japan but Kang Chi refuses to see her to say goodbye.

Seo Hwa and Wol Ryung finally meet each other but he can’t remember who she is. Seo Hwa is rescued and taken to the Academy. Kang Chi finally gets to have mother-son moment with his mother but when he falls asleep she leaves to find Wol Ryung. She knows she’s the only one that can stop him.

Wol Ryung is finally back to normal and comes back to find Kang Chi one more time and warns him not to give into fear. Kang Chi is determined to become human now that he has complete control of his gumiho form. Monk tells Kang Chi about Yeo Wool’s fate so he is devastated to find out she might die. When he comes back he tells Yeo Wool that he has 3 wishes. The gang is given a new mission to go to the 100 Year Inn where Kang Chi accidentally injures Yeo Wool.

Kang Chi tries to break things off with Yeo Wool because of the accident but is convinced by Admiral Lee to abandon such thoughts. That night, Yeo Wol is kidnapped by Jo Gwan Woo who tells Kang Chi he’ll spare Yeo Wol if he kills Admiral Lee. The whole gang gathers in front of the 100 Year Inn after saving Yeo Wool. The episode ends in a cliffhanger as Gwan Woo’s security guard fires a gunshot and hits one of the ‘good guys’.

We find out that the person that got shot was Yeo Wool and this causes Kang Chi to lose control of his gumiho form. Jo Gwan Woo is arrested for being a trader and Kang Chi gets the 100 Year Inn back. Yeo Wool also has 3 wishes and Kang Chi finally goes on his journey to become a real human.