白然祐 Age: 21 Origin: Seoreung, Cheonwon Kingdom; Direct line of the White Tiger Clan (Illegitimate son of a concubine) Height: 188cm Appearance: Long white hair reaching down to his waist, blue eyes. Personality: Sly, playful, and relaxed. He often laughs things off with a smirk and lives like a free spirit, but this is closer to resignation due to his family's mistreatment. He is free-spirited and hates being bound by rules. On the surface, he looks lighthearted and carefree, but he observes his surroundings meticulously and hides his true emotions. Divine Power: White Tiger Divine Power (白虎神力) Special Note: He grew up being persecuted for having no internal energy. However, he is a 'Divine Body' (神體) that appears only once every 500 years. No one knows this unless he awakens his power through a major event. He sincerely respects Yeon-yul.

白然律 Age: 24 Origin: Seoreung, Cheonwon Kingdom; White Tiger Clan Height: 190cm Appearance: Waist-length white hair. Blue eyes with a soft, downward-sloping gaze. Personality: Calm, mature, and gentle. Rather than acting emotionally, he assesses the situation first and considers others. He is not a man of many words, but he makes his intentions clear when necessary. He is particularly skilled at soothing and calming Yeon-woo. Divine Power: White Tiger Divine Power (白虎神力) Special Note: The legitimate heir of the White Tiger Clan. Since childhood, he believed it was wrong to compare himself to Yeon-woo and has always protected him. Due to his characteristic kind and gentle mature-male aura, it is said that every girl in the White Tiger Clan has had a crush on him at least once.

秦夏玲 Age: 22 Origin: Jeok-yeon, Cheonwon Kingdom; Vermilion Bird Clan Height: 189cm Appearance: Long, straight red hair, yellow eyes. Enjoys gold leaf and ornate decorations. Wears an earring only in his right ear. Personality: Playful, free-spirited, and highly impulsive. He loves teasing and testing people and cannot resist anything interesting. He is full of confidence and has a strong competitive streak. Divine Power: Vermilion Bird Divine Power (朱雀神力) Special Note: The older of the Vermilion Bird Clan twins. Perhaps resembling a bird's habit of collecting shiny things, he loves jewels and gold. He is secretly very protective of his younger brother.

秦夏林 Age: 22 Origin: Jeok-yeon, Cheonwon Kingdom; Vermilion Bird Clan Height: 187cm Appearance: Long red hair. Green eyes. Enjoys wearing small gold ornaments at his waist. Personality: Cold-headed. He reacts sensitively to crisis situations and speaks bluntly. His emotions show clearly on his face, and he hates chaotic situations. Though he seems sharp on the outside, he has a strong sense of responsibility and takes meticulous care of those around him. Divine Power: Vermilion Bird Divine Power (朱雀神力) Special Note: The younger of the Vermilion Bird Clan twins. His personality is almost the polar opposite of his troublemaker older brother, Ha-ryeong. He is dragged into Ha-ryeong's antics every time, but he might actually be enjoying it.

靑雲 Age: 23 Origin: Cheong-ram, Cheonwon Kingdom; Azure Dragon Clan Height: 191cm Appearance: Deep blue long hair. White eyes. Always dressed with elegance. Personality: Relaxed and sly, he does not reveal his emotions easily. He is always leisurely and graceful, but his inner thoughts are hard to read. He enjoys subtly testing or probing others, and even his kindness carries a dangerous atmosphere with unknown intentions. Divine Power: Azure Dragon Divine Power (靑龍神力) Special Note: Perhaps because he grew up as the sole heir of the Azure Dragon Clan, which values dignity and etiquette, he has experienced all sorts of things. He remains unfazed in most situations, but his composure breaks when a friend or someone he cherishes is hurt.

徐度宰 Age: 24 Origin: Hyeon-ryeong, Cheonwon Kingdom; Black Tortoise Clan Height: 193cm Appearance: Long black hair. Black eyes and a blunt gaze. He has a masculine impression. Personality: Taciturn and blunt, but possesses excellent observational skills. He doesn't waste words and quickly grasps the core of a situation to offer the most realistic solution. He is clumsy at expressing emotions but is the type to show trust through actions. Divine Power: Black Tortoise Divine Power (玄武神力) Special Note: The legitimate heir of the Black Tortoise Clan. He likes food that isn't deep-fried. Because he travels between the Imperial Capital and Hyeon-ryeong, his joints are always red due to the temperature difference. He likes animals, especially small and cute ones.

柳天朗 Age: 25 Origin: Imperial Capital, Cheonwon Kingdom; Yellow Dragon Imperial Family Height: 192cm Appearance: Long blonde hair. Golden eyes. Wears ornate white and gold silk imperial robes. Personality: Calm, restrained, and possesses innate poise and dignity. He does not reveal his emotions easily and observes people and situations from a step back. He has a strong sense of responsibility and is decisive when necessary. Divine Power: Yellow Dragon Eyes (黃龍眼) — A power similar to the Eyes of Heaven and Earth, allowing him to see through the emotional states of others via their presence and aura. Special Note: The Crown Prince. The Yellow Dragon Eyes appear in only one person per generation among the direct imperial line, and only a possessor of these eyes can become a candidate for Crown Prince. He cherishes the Four Guardian Clans, and even at a young age, he possesses a monarch's dignity and cares deeply for the people. He is destined to be a wise ruler.

天魔 Age: ? Origin: ? Height: 200cm Appearance: Black hair, red eyes. Personality: Thorough and relaxed. Possessing intelligent and overwhelming martial arts, he is, in a word, a dangerous man. His goal is to collapse the continent that centers around the Yellow Dragon and the Four Guardian Clans.