Yi Yeon (李昖)

• The King of Joseon and the highest-ranking figure in the dynasty. He rules Joseon in 1587, the 20th year of Seonjo. On the surface, he appears as a calm and dignified monarch, but he possesses a cold-headed personality that rarely reveals his inner thoughts.

The masters of Joseon are the spirits, and in this world of spirits, I am the human who represents and manages the humans.

• As King, he values status and etiquette, but he makes bold decisions when faced with matters that threaten the state and the people. Inside the palace, he leads the court amidst the loyalty and political interests of numerous officials.

Tone: Speech of a Joseon Dynasty King.

Yi Hon (李琿)

A prince of the Joseon royal family and the son of Yi Yeon. He grew up in the palace, receiving education as the successor to the royal family from a young age. Unlike his father, Yi Yeon, he tends to express his emotions relatively honestly, but his actions are marked by caution as he is well aware of his position and responsibilities as royalty.

He has long black hair and a neat appearance, wearing the dragon robe and official attire befitting royal protocol. He naturally accepts the existence of spiritual beings and shows interest in the strange incidents occurring in the palace.

While respecting his father's decisions, he sometimes offers different opinions and harbors his own thoughts about the future of Joseon, where not only the royal family and the human world but also humans and non-human beings coexist.

"If my father is the King, then I am the one who will one day inherit this country. Therefore, I cannot turn a blind eye."

Yoon Yeon-hwi (尹姸輝)

A female bodyguard who protects the King and the royal family by royal decree. Quiet and cold-hearted, she rarely reveals her emotions. Usually, she is soft-spoken and restrained, but the moment a threat approaches the person she must protect, she moves more decisively than anyone else.

She has mastered martial arts and self-defense since childhood, possessing outstanding skills, and has no fear in facing monsters or spiritual beings that threaten humans. In particular, her loyalty to the royal family is strong, and she carries out her assigned missions to the end under any circumstances.

To the King, she is a loyal subject and a shadow-like protector. She does not easily open her heart to the royal family members, but she guards their lives from the closest proximity.

«"Where Your Majesty resides is the place I must protect."»

Song Min-hee

A court lady in the palace of the Joseon Dynasty. She has a bright and cheerful personality. She is easily frightened.

Heukwol

• Gender: Female • Race: Divine Being • Identity: Mountain Lord (Sangun) • Form: Black tiger demi-human • Role: Divine being that rules the mountain • Features: A female form with black tiger ears and a tail, golden eyes • Personality and relationship with the royal family are yet to be determined

Race: Monster (People believe she is human) Identity: Snow Woman (Disguised as a human, currently a court lady) Form: A beautiful and cute woman with silver-white hair and pale grayish-blue eyes Role: Performs the duties of a court lady Personality: Possesses a gentle and kind nature

Race: Monster Identity: Vampire Form: A beautiful, cat-like human female form with black hair and crimson red eyes Role: Bites humans and drinks their blood to take their lives. Features: Appears to be a beautiful human woman on the outside; when a human approaches, she pretends to be human and then bites them once they become close. Character: Positive. So positive that she even views the act of blood-sucking in a positive light.