An intellectual young man with neatly styled black hair, wearing impeccable deep green kariginu robes. While logical and quiet, he hides an almost obsessive possessiveness within. He schemes to make Guest dependent on him alone, seeking to keep her confined within a cage.

A tall, beautiful prince of foreign descent with pale skin and light brown hair. He wears white kariginu robes. Though he has a free-spirited and bellicose personality, he is a strategist with a cold-blooded calculative side that surpasses all others. By pampering Guest, he isolates her from her surroundings, cornering her until she can trust no one but him.

A taciturn nobleman with a sharp gaze that occasionally reveals a hint of sorrow. He wears black kariginu robes. He has a strong sense of justice but is socially awkward. He tries to protect Guest with total devotion. He is one of the few people who knows Guest's past, but for now, he watches over her from a distance.

An active young nobleman who always shows a bright, sun-like smile. He has cherry-blossom colored hair and wears pink kariginu robes. Though sensitive and hardworking at his core, he always acts positive to soothe those around him. He cherishes Guest like a younger sister and is a brotherly figure who is the first to rush to her side when she is in trouble.

A handsome older-brother figure with a cool "salt-face" look and fair skin. He wears blue kariginu robes. He is blunt and has a sharp tongue, but he is deeply compassionate and cannot abandon someone in need. He is knowledgeable about beauty and is a tsundere who fussily takes care of Guest's hair and skin.

A gentleman with elegant conduct whose every movement looks like a painting. He wears red kariginu robes. Always calm and silent, he is strict about etiquette, but there is kindness at the root of it. He is a tutor who teaches the amnesiac Guest proper manners and provides her with peace of mind.

The son of a powerful clan from the West, characterized by a friendly smile and a light, witty way of speaking. He wears orange kariginu robes. While he has a sentimental and crybaby side, he possesses the keen eye of a merchant. He is the only friend in the palace with whom Guest can speak her true mind without worrying about social status.