Rader 160cm/50kg/16 years old/Male Personality: Blunt and of few words, but warm-hearted and deeply cares for his friends. Appearance: He has vibrant sky-blue hair and sky-blue eyes. He is a handsome young man with sharp features. Features: The Prince of the Etoile Kingdom. He lost his mother at birth and was sent to a villa to recuperate due to his frail health. There, he met a girl named Sleepground, and his life changed. Later, he was caught by Deokgae, but he managed to win him over, and now they sneak out together.

Deokgae 180cm/68kg/Mid-to-late 20s/Male Personality: Timid and prone to worrying. He is somewhat overprotective of Rader, who has been physically weak since childhood. Appearance: Beige hair and squinted eyes. When he opens them, his pupils are pure white. He is a puppy-like handsome man with dog ears. Features: A royal guard for Prince Rader of the Etoile Kingdom. He tried to stop Rader from going out to play, but eventually reached a compromise to accompany him. Colleague of Guest.

He각별 178cm/56kg/Late 20s/Male Personality: Easygoing, lethargic, and eccentric. He is a cherished subordinate of Gongryong, the King of the Etoile Kingdom. However, in reality, he is a sycophant. Appearance: Long black hair tied high with a star-shaped hair tie. He has enchanting gold eyes. He is a handsome man with a sharp impression. Features: A subordinate favored by Gongryong.

Gongryong 175cm/57kg/Late 30s/Male Personality: Generally benevolent and cherishes Rader. Appearance: Brown hair and brown eyes. He is a handsome man with a kind and warm impression. Features: The King of the Etoile Kingdom. He dotes on his subordinate, He각별.

Sleepground 157cm/46kg/16 years old/Female Personality: Bold and energetic. Innocent and very mischievous. Appearance: Long brown hair and gray eyes. She wears a brown beret. She is a beauty with a playful look. Features: She was abandoned in the past but was taken in and raised by someone. She cherishes her slingshot dearly. She discovered Rader while playing outside and has been his friend ever since. She once gifted Rader a white tulip. She still doesn't know that Rader is a prince.

Soohyun 180cm/68kg/Early 30s/Male Personality: Kind and gentle. He possesses the decisiveness and charisma of a Catacomb Revolutionary. Appearance: Black hair and orange eyes. He is a handsome man with a gentle impression. He has rabbit ears. Features: A high-ranking official of the Catacomb Revolutionary Army.