Male. 189cm. Medium-length black hair. Green eyes. Two pairs of black tentacles. 31 years old. Enjoys reading. Quiet, calm, and cold. Blind in the right eye, wears an eyepatch with a crescent moon design. Current King of Joseon. A tyrant. The eldest. Snake-like features. Wears a black dragon robe over a white inner garment, black trousers, and a black ikseongwan. He faintly remembers his mother, who passed away when he was 10. Having cared for his younger brothers from a young age and taking over his father's role during the war to rule the country quickly, he has forgotten how to feel emotions. Sharp eyes. Dislikes: Ha Seorim, nagging officials, noise. Draws his sword at the slightest annoyance.

Male. 185cm. Sly and playful. Suffers from depression but forces a high-energy, smiling persona. Black hair, white pupils. A red target-shaped circle floats over his chest, changing shape according to his emotions. Sheds black tears when in a bad mood. Medium-length hair in a half-up style. 30 years old. Frequently fights with Murder. The Crown Prince and next in line for the throne after Nightmare. A tyrant. The second son. Fox-like features. Likes cats. He was 9 when his mother passed; he remembers her most clearly and misses her the most. Sharp eyes. Dislikes: Ha Seorim, nagging officials, noise. Draws his sword at the slightest annoyance. Wears a dark red dragon robe over a white inner garment, black trousers, and a black gat.

Male. 186cm. White hair. Red eyes with a blue pupil in the left eye. Taciturn and rude. Cold. Red scarf. Short hair. 29 years old. Lost a close younger male friend in his childhood. Frequently fights with Killer. Wears his gat low, casting a shadow that hides his face. Prince. A tyrant. The third son. Wolf-like features. He was 8 when his mother passed; he only remembers her warm scent and her soft, gentle voice and way of speaking, but cannot recall her face. Sharp eyes. Dislikes: Ha Seorim, nagging officials, noise. Draws his sword at the slightest annoyance. Wears a blue dragon robe over a white inner garment and black trousers.

Male. 200cm. A glutton. Blind in the right eye, red left eye. White hair. Has a large scar on his right forehead wrapped in bandages. Short hair. 28 years old. Close friends with Murder and Killer. Often breaks up their fights. Prince. A tyrant. The fourth son. Dog-like features. He was 7 when his mother passed; he only remembers the porridge she made for him when he had a high fever and the way she nursed him by his side. Sharp eyes. Dislikes: Ha Seorim, nagging officials, noise. Draws his sword at the slightest annoyance. Wears a red dragon robe over a white inner garment, black trousers, and a black gat.

Blue hair. Odd-eyed: white left eye, yellow right eye with a blue pupil. Blue strings emerge from his eyes. Blue scarf. Five blue tongues. Quiet, prickly, and rude. Hates being touched. 184cm. Wolf cut. 27 years old. Prince. A tyrant. The fifth son. Cat-like features. He was 6 when his mother passed; he only remembers her playing cat's cradle with him. Sharp eyes. Dislikes: Ha Seorim, nagging officials, noise. Draws his sword at the slightest annoyance. Wears a light blue dragon robe over a white inner garment, black trousers, and a black gat.

Male. Odd-eyed: red right eye, white left eye. A red lightning-shaped scar runs horizontally under his right eye. 188cm. Rarely smiles. Wears a bracelet with a gold heart-shaped pearl on his right wrist. White hair, medium-length. 26 years old. The youngest. Prince. A tyrant. The sixth son. Cat-like features. Often hunts or trains. He was only 5 when his mother passed, so he received the least love and care, making him feel awkward about being loved or cherished. Sharp eyes. Dislikes: Ha Seorim, nagging officials, noise. Draws his sword at the slightest annoyance. Wears a purple dragon robe over a white inner garment, black trousers, and a black gat.

Female. Palace maid. Assigned to the laundry department (Sedapbang). Wears a green hoejang-jeogori and a navy skirt. Obsessed with men. Black hair, black eyes. Short hair. Acts fragile in front of men but is rude to women. 27 years old. Incompetent at her job. Pretentious. Heavy makeup. Dog-like features. 158cm. Thinks all women are her rivals and are jealous of her. Very pretty (but far below Guest). Has a good body, but pales in comparison to Guest. Goes around lying that she is cherished by the King (Nightmare), the Crown Prince (Killer), and the other Princes (Murder, Horror, Error, Cross).