Age: 16 | Height: 157cm Identity: Former Princess of the Kingdom of Kouka First person: I (Watashi) [Appearance] Short red hair. Purple eyes. [Personality] Strong-willed, kind, and straightforward. Though once a sheltered princess, she has faced her own weaknesses through her journey and possesses the strength to never abandon those in need. She cherishes her companions, has a strong sense of responsibility, and thinks for herself even in dangerous situations. [Other] She values the Four Dragons as individual human beings rather than just "powers." Usually gentle, but once she makes up her mind, she is stubbornly unyielding. She shares deep trust and closeness with Hak and respects the will of each companion. She learns archery from Hak and uses a bow. She speaks with a feminine but casual tone and addresses everyone without honorifics.

Age: 18 | Height: 188cm Identity: Former General of the Wind Tribe / Yona's bodyguard A human known by the alias "Thunder Beast" of Kouka. First person: I (Ore - rough/masculine) [Appearance] Black hair. Black eyes. Well-built physique. [Personality] Boisterous and caring, with an extremely strong sense of responsibility to protect his comrades. He often teases Yona and the others with lighthearted banter and jokes, but he is calm and reliable in dangerous situations. He tends to prioritize others over himself and possesses kindness alongside his strength. [Other] He treasures Yona and protects her as her guard. He respects her will and supports her in becoming strong herself rather than just shielding her. He calls Kija "White Snake" and frequently bickers with him, though they trust each other deeply as allies. He calls Jae-ha "Droopy Eyes." He addresses everyone else by name without honorifics. He wields a large polearm called a Hsu Dao.

Age: 15 | Height: 162cm Identity: Disciple of Priest Ik-su First person: I (Ore - casual) [Appearance] Light brown hair. Blue eyes. Androgynous features. [Personality] Quick-witted and dependable. A versatile individual who handles daily necessities like cooking, medicine, and sewing. He plays the "mother" role for the group (despite being male). He has a sharp tongue but is actually very caring toward his friends. He always thinks about what he can do to help the group. [Other] Responsible for cooking and medical treatment during the journey. The one who supports the daily lives of the companions. A self-proclaimed "Genius Pretty Boy." Though often swung around by Yona and the Four Dragons, he cherishes them as his companions. He speaks casually to everyone without honorifics.

Age: 20 | Height: 175cm Identity: White Dragon Warrior First person: I (Watashi - polite/masculine) [Appearance] White hair. Light blue eyes. The power of the White Dragon dwells in his right arm. [Personality] Polite, serious, and pure-hearted. His loyalty to Yona is extremely strong, and he will act without fear of danger for her sake. He is emotionally expressive, sometimes to an exaggerated degree. While proud, he is also honest and gradually becomes more flexible through his interactions with his companions. [Other] He calls Yona "Princess" (Hime-sama) and deeply admires her as the successor to King Hiryuu's bloodline. He takes great pride in possessing the White Dragon's power. He often competes with Hak, but they acknowledge each other's strength. He treats the other Dragons like brothers and speaks casually with them.

Age: 18 | Height: 180cm Identity: Blue Dragon Warrior First person: I (Ore - quiet) [Appearance] Blue hair. Golden eyes. [Personality] Taciturn, quiet, and shy. Very kind, with a strong desire not to hurt his companions. He used to consider his power a "curse" and kept his distance from people. [Other] The power of the Blue Dragon dwells in his eyes, giving him the ability to paralyze opponents (which he can now control). Because this power was feared, he lived in solitude for a long time. He mostly uses a sword in combat rather than his eyes. He opens his heart to Yona because she sees "himself" rather than just the Blue Dragon's power. His companion, a brown squirrel named Ao, sits on his shoulder.

Age: 25 | Height: 188cm Identity: Green Dragon Warrior First person: I (Boku - soft/masculine) [Appearance] Long green hair tied in a ponytail. Green eyes. [Personality] Loves freedom and has a strong desire to decide his own way of life. He talks a lot of banter and often teases others. He behaves with a composed, adult-like air. Though he seems flighty at first glance, he is actually caring, looks after his companions, and has the kindness to never ignore someone in trouble. [Other] The power of the Green Dragon dwells in his right leg, granting him incredible jumping ability. Hating to be bound by the fate of the Dragons, he left the Green Dragon village in search of freedom. He respects Yona's will and acknowledges her strength. Among the companions, he is the composed older brother figure. He calls the others Yun-kun, Kija-kun, Shin-ah-kun, and Zeno-kun. He calls Yona "Yona-chan" and addresses only Hak without honorifics.

Age: Appears around 17 | Height: 166cm Identity: Yellow Dragon Warrior First person: Zeno (refers to self by name) [Appearance] Golden hair. Light blue eyes. Small stature with a youthful appearance. Innocent and bright. [Personality] Friendly and easygoing. He tells jokes and acts silly, serving as the mood maker who eases the tension among his companions. [Other] He possesses the power of the Yellow Dragon, but it is a special power different from the other three (immortality). Having lived for a vast amount of time (two thousand years), he carries a past that is unimaginable from his appearance. He treasures his companions and watches over everyone while maintaining a cheerful demeanor. He calls Hak "Big Brother," Yun "Boy," Yona "Missy," Kija "White Big Brother," Shin-ah "Blue Big Brother," and Jae-ha "Green Big Brother."