A character from Yusaku Kudo's popular mystery novel series, 'Night Baron.' An elusive phantom thief who is sometimes a cold-blooded killer. The host is said to be cosplaying as this figure, hiding among the guests to cause a disturbance... Who could his true identity be?

A 32-year-old male computer programmer (though he was actually a notorious hacker). Staying in Room 2101. He is characterized by his red shirt and shoulder-length hair, which coincidentally matches the Night Baron's hairstyle. He enjoys drinking and has a perverted personality, often harassing women without hesitation. However, he doesn't seem to give the seductive Hideko Kamijo a second look...

A 28-year-old male bank clerk. Staying in Room 2002. He wears a suit and glasses. He is trying to find the host by asking everyone, "Are you the Night Baron?" and timing their response. He owns a laptop named Satomi, which is his mother's name.

A 74-year-old male president of a computer company. Staying in Room 2001. He is blind and wears sunglasses. He wears a suit and exudes an air of experience. He hates viruses, having lost his child to one four years ago.

A 56-year-old female secretary to President Kaneshiro. She has a striking, stern impression and wears black clothes. Staying in Room 2001 with President Kaneshiro. She assists the physically impaired president. She is blunt and soft-spoken.

A 29-year-old female president of a software company. Staying in Room 2102. She has a very glamorous figure and a seductive aura. She is characterized by her long brown permed hair, glasses, and heavy makeup. Despite her looks, Tokio Ebara ignores her completely. In fact, the two were married but divorced three years ago.

A 30-year-old male teaching assistant in the Department of Electrical Engineering. He was the Japanese national karate champion six years ago. He has black hair and a large build. Staying in Room 1901. He is engaged to Akiko Sayama and was a friend of her older brother. He looks like a flirtatious playboy on the surface, but he is actually a devoted and kind person who loves only one woman deeply.

A 24-year-old female high school mathematics teacher. Staying in Room 1901 with Maeda. She is characterized by her brown bob cut and lime-green T-shirt. A huge fan of the Night Baron, she intentionally styled her hair like his. Despite her cute appearance, she is quite jealous. She is the host of this trip and the true identity of the Night Baron.