Princess Yona of the Kingdom of Kouka, with her unusual red hair, has lived a comfortable life in Hiryuu Castle protected by her father King Il, who hates conflict, and her childhood friend and guard, the young general Hak. Yona is overjoyed when her cousin Soo-Won, whom she has loved since childhood, arrives for her sixteenth birthday banquet

“We'll go anywhere as long as it means you'll live.” As Yona is dazed by the suddenly rebellion at the castle, Hak runs to her rescue. Also known as the “Thunder Beast of Kouka Kingdom”, Hak protects Yona, and with a single lightning-quick strike from his blade, he dispatches the mercenaries attacking them on after another

Hak protects Princess Yona as they make their way through the mountains. Having lost her will, Yona is only able to follow behind Hak. Hak painfully watches Yona grow weaker

At the end of their difficult escape, Yona and Hak arrive in Hak's hometown of Fuuga, the capital of the Wind Clan, where Yona receives a warm welcome

Hak is accused of murdering King Il. In order to protect Yona and the Wind Village, he gives up his title of chief and decides to wander alone

Though Hak continues to fight off the soldiers pursuing him, a poison prevents him from fighting like his usual self

Yona and Hak, covered in wounds from protecting the princess, are saved by the Priest Ik-Soo and his caretaker Yoon living on the valley floor

Ik-Soo suddenly announces he will travel with Yuna and Hak to see the world. Yoon is upset and unable to contain his anger. Though Yona and Hak understand his feelings, they are unable to do anything but watch in silence

The words of god conveyed to Yona through the priest Ik-Soo are to find the four Dragon Warriors of Kouka Kingdom's Legend of the Four Dragons

Yona and her friends arrive in the village where the White Dragon lives. The proud villagers who have protected the power of the White Dragon and passed it down through generations of White Dragons believe Yona may be the descendant of the Hiryuu King who employed the first White Dragon when they see her red hair

oined by the White Dragon Ki-Ja, following his claim that Dragon Warriors can sense each other, Yona and her friends begin their search for the Blue Dragon. However, even with Ki-Ja's power, they are unable to determine his exact location

In their search for the Blue Dragon, Yona and her friends visit a hidden village carved from stone. Though Ki-Ja insists the Blue Dragon is there, the villagers claim there is no Blue Dragon

The blue dragon warrior, who experienced a voice telling him to protect Hiryuu when he touched Yona, while recognizing Ki-Ja as the white dragon, is dazed and escapes into the caves. Yona and Yun enter the caves, leaving Hak and Ki-Ja behind to deal with the villagers. They find the agitated blue dragon warrior, and Yona calmly asks him to be her ally

The blue dragon warrior retrieves his mask and begins digging a path out of the cave. The others join him and Hak starts digging from the outside. Hak finally breaks through and reunites with Yona

The five search for the green dragon warrior using Shin-Ah's farsightedness to scout ahead. They encounter a dilapidated village and a sickly man who criticizes the late King Il. Meanwhile, Su-won visits Chishin, the capital of the Earth Clan, and meets with Lord Li Geun-Tae, who is not impressed by Su-won

The war game is held. The participants are divided into teams with Su-won and General Geun-tae leading the white and red teams respectively. The objective: to score the most points by breaking the plates of the other team

Yona and her companions reach Awa Port. Hak enters the city alone and without realizing it, meets the green dragon warrior, Jae-ha. Jae-ha moved to the city thirteen years ago and joined a band of good pirates lead by Captain Gigan

Yona and her companions continue their search for the green dragon warrior, encountering more corrupt officials. As Jae-ha pursues Hak, he unwillingly meets Ki-ja. Jae-Ha refuses to join them and flees again, soon-after finding Hak

"Maybe it's because you don't really want her." Captain Gigan agrees to allow Yona to fight alongside her pirates if she is able to pick the "senjuso," a rare medicinal herb growing in the middle of a sheer cliff, without anyone's assistance. Yona's companions try to talk her our of accepting such a dangerous task, but Hak, who understands Yona's emotions, desperately suppresses his desire to stop her

"Why are you always so reckless, Princess? Sometimes I wish I could tie you up." Sensing the impending battle against Kumji, the pirates steel their resolve. Meanwhile, Yona heads into the town for reconaissance with Jeaha and happens to spot Lord Kumji

Yona and Yun, who willingly entered Kumji's store as bait to help rescue the captured women, successfully infiltrate the ship transporting the women, where Kumji appears before them

"Why? Why am I so afraid? She's just a little girl." While suffering injuries, Yona and Yun successfully complete their task, and Jeaha rushes to their aid to fight against hordes of attacking mercenaries. Watching Jeaha fights, Yun realizes how truly amazing those who possess the strength of the dragons are

"You're not the frail princess you used to be." Hope returns to Awa after defeating Yan Kumji, and the townsfolk and pirates throw an extravagant party to celebrate. Jeaha steels his resolve

"Miss, what do you want to do with the Four Dragons?" Yona and her companions continue their journey to find the fourth and final "Yellow Dragon" when they encounter a traveler named Jeno. He is the "Yellow Dragon" they have been seraching for