In the forest, Yoon finds Hak and Yona unconscious on the riverside and takes them to his home to treat their injuries. While he is squeezing an orange to Yona’s mouth, she suddenly wakes up and looks for her companion. he shows where Hak is, which is just on the opposite side of the room, and tells her how he is protected by him when he found them. Yoon then asks if they are lovers, but Yona denies such thing, which he finds pitiful for Hak. Ik-Soo returns home all muddy and approaches Yona; however, he tactlessly gives away his identity as the high priest of Kouka which makes Yoon annoyed at him as he lost the sense of keeping a low profile. Yona innocently asks why the priest was exiled and Yoon is shocked to see her obliviousness despite living in the palace.
Suddenly, Hak moves slightly and Yoon rushes to his side. He notices that Hak has a fever and tells Yona that this will be a critical time for her friend. Yona demands to heal him right away and Yoon says that he will not let him die; however, as he feels remorseful towards the royalty, he points out that she hasn't thanked him yet and the possibility that she hasn't done the same for Hak either. Ik-Soo tells him that he should be considerate as Yona is also suffering, though in her own way. That evening, Yona apologizes to him and asks what he knows about the priests' exile as he believes that he is also a priest. He tells her everything he knows, but not before clarifying that he is not a priest.
The next day, Hak slightly recovers from his wounds and eats the food Yoon was preparing. Hak also thinks that Yoon is a priest and he clears it up for him. After some time, the two of them go to the waterfall to look for Yona and Ik-Soo. When they arrive, the priest is telling Yona about the prophesy and his suggestion to search
for the dragon warriors to keep Hak alive. Hak doesn't believe a word the priest said which makes Yoon punch him on his wound so that he will have no qualms. The following morning, Yoon gives a dress to Yona to replace the rags she is wearing. Yona thanks him and then looks for a sharp object to cut her hair. To his horror, she picks up an ax and this forces him to do the task for her. While he is cutting her hair, Yona asks him about Ik-Soo and he gleefully describes him, though he soon stops after realizing that he is telling too much. After that, he goes outside and passes their storage house when he overhears Ik-Soo and Yona’s conversation about a favor to tag him along with the latter’s journey. When Ik-Soo comes out, he corners him and
asks him about what he heard. The priest tells him that he needs to see the outside world and further makes him mad when he mentions that he no longer needs him. Yoon walks away and goes to the waterfall to think about what is happening.
After a while, Ik-Soo comes and by that time, he accepts the priest’s decision as his words are absolute for him. Ik-Soo cries as he starts to feel lonely and Yoon couldn't help but pat him as he gets teary-eyed as well. He soon leaves together with Yona and Hak to search for the Village of Hakuryuu.
After travelling in the mountains, they arrive at the forest near the Village of Hakuryuu. Yoon goes first to search for the village’s exact location while Hak and Yona continue their archery training, which the latter insisted so that he will not be a burden. While he is wandering, he is captured by the guardians and is locked up in a cage at the village. He demands them to let him go while thinking of a way to get out, when suddenly he sees that Yona and Hak are able to get in freely inside the village. He is soon released and joins them on touring the village. As their guide tells them about the specifics about their inherited oath for Hakuryuu and their fascination towards a red-haired person that their founder served, Yoon asks what would happen to the three of them if it turns out Yona is not the red-haired person they are looking for. The guide remains silent for a long time, and then completely ignores him, which makes him worry a lot.
When the trip ends, they rest for a while under a huge tree, but it is soon interrupted when Kija shows up. He tries to get them away from the village; however, his intention changes when he gazes on Yona and realize that he is the master he is waiting for. Later, Hak goes to Kija’s home and when he returns together with Kija, he notices the tense atmosphere between them and grows annoyed upon learning about their rivalry over who will be protecting Yona. As Kija officially joins their group, they leave the village to look for the nearest dragon warrior, which is the Seiryuu.
After having a hard time locating the Village of Seiryuu because of its deceptive exterior, they manage to get there and enter the village after Yona negotiates with the village chief, though he is still a little cautious at first because of what he experienced on Kija’s hometown. A room was accommodated for them, but they didn't stay there for long as they decide to look for the Seiryuu. With the place looking like a maze, he starts mapping the area and afterwards, they end up on a dead end. They leave that spot after he feels that they are being eyed by the villagers, however, as they go back, they notice that Yona is no longer with them. Eventually, they find her together with a masked man, who quickly runs away upon seeing them. Kija tells them that he is the Seiryuu.
After some talk, they decide to leave Hak behind so that he can keep an eye on the villagers while they return to where they found the masked man. Yona shows them a hidden door, which makes him amaze, and they go inside. When they reach another opening, Kija tells him that he will stay behind and he catches on to what he meant. He and Yona then enter the room and finds Seiryuu, who becomes defensive against them. Yoon becomes scared, but Yona still approaches Seiryuu without fear. Their conversation ends with Seiryuu refusing to join them and they decide to leave. Outside, Yoon notices how disappointed he is despite her decision to give up in inviting Seiryuu. They arrive to where Kija is and that exact moment, an earthquake occurs and traps them in the room they are in. Yoon becomes scared as they will soon run out of air if they remain trapped inside. Yona calms him and all of them start digging at the blocked entrance. Seiryuu appears and helps them to get outside by telling them a spot that will lead them to the exit faster. As they continue to dig, Hak sets them free after he opens the opposite side of the same spot. After the event, Yona invites Seiryuu once more and they gain him as their ally. They soon leave the village to find Ryokuryuu.
Before they could pinpoint the location of Ryokuryuu however, Kija suffers from fatigue and they stop for a while to take some rest. As they have their meal, Seiryuu thanks Yona when he offers her cloak to him and calls her by her name. This made them all surprised as they only call her "Princess". That evening, he talks to Yona and apologizes for how he acted when they first met, which Yona gladly accepts. He also asks her if he could call her by name like Seiryuu and she allows him to.