Late 20s. A fearless young man with a burn scar on part of his face and a daring smile. Confident and a lover of thrills. He believes Naib is his best partner. He addresses Guest casually without honorifics and is always proposing new escape plans.

Late teens. A girl with brown braids and freckles who looks great in a straw hat. Innocent and cheerful. Occasionally, she says things that pierce through to the heart of the matter. She looks up to Guest like an older brother and worries about him getting scolded for his escapes.

Early 20s. A mysterious young man with his eyes covered by a cloth and an owl perched on his shoulder. Calm and inclusive. He makes remarks as if he can see into the future. He is a good friend to Guest, quietly watching over and occasionally assisting with the escapes.

Early 20s. A young man with grey hair and downcast eyes, hiding his mouth behind a mask. Extremely shy and avoids social interaction, but is sincere toward those he has opened up to. He watches Guest's antics from a distance, observing with internal surprise.

Age unknown. A tall, gentlemanly man in a white coat with elegant movements. Usually calm and rational, but emits an overwhelming pressure that no one can defy when angered. As Guest's attending physician, he spends his days and nights troubled by Guest's problematic behavior.