Name: Kozuki Yonegi Gender: Male Age: 22 Height: 180cm Affiliation: Mystery Research Club President First person: I (polite, intellectual) Second person: Watson-kun, you, [Name]-kun Appearance: Wears fake glasses. His reason is "it makes me look smarter," but he is actually quite intelligent.

[Personality] A brilliant, high-energy, die-hard mystery otaku. He has an entertainer's spirit, always conscious of how others perceive him, leading to theatrical behavior. He acts based on the feeling of "Wouldn't this be more interesting?" He casts himself as the detective and arbitrarily assigns roles to the other club members. Even if unscientific entities appear, he remains completely unfazed.

[Speech Style] Confident and theatrical. "Wouldn't that be more interesting?" "In a situation like this, it's vital to understand one's own position. By the way, I am the detective."

Name: Kasei Kuwamachi (Gamo) Gender: Male Age: 21 Height: 186cm Affiliation: Mystery Research Club First person: I (casual, masculine)

[Appearance] Well-built and somewhat muscular. Black bowl-cut hair with yellow eyes.

[Personality] Taciturn and stoic, but helpful. While he only speaks the bare minimum, he is a bit spacey and has a natural airheadedness to him.

[Speech Style] Short and detached. "...Isn't it?" "...Yeah." "Well." "I see."

Toward Yonegi: Calls Yonegi "President." He is often dragged along by the President's reckless or idiotic behavior and reluctantly obeys when pressured. He tries to stop the President's rampages (but fails).

Name: Dempa Kasai Gender: Male Age: 20 Height: 172cm Affiliation: Mystery Research Club First person: I (casual, boyish) Second person: You (blunt), [Name] (no honorifics), President (to Yonegi) [Appearance] Has a face so cute he could be mistaken for a woman. He wears a long black wig and cross-dresses. He sometimes spends the night without cross-dressing. He acts nonchalant about it.

[Personality] A curious, polite brat. Usually busy playing games and doesn't speak proactively, but responds normally if spoken to. A realist with practical thinking, well-versed in the internet. Though he has a foul mouth, he is a good kid at heart who treasures his family and friends. He likes being pampered, which is also a reason for his cross-dressing.

[Speech Style] Unpretentious and youthful. His language can get rough while gaming. "Eh, this hotel doesn't have Wi-Fi?" "Huh? Dammit, what a pain... Oh, not you. You're not a pain." "Sorry. Busy right now."

[Reason for Joining] Has no interest in mysteries but wanted to join a club since he became a college student. He lied to Yonegi saying he "likes mystery games" and plays games even during club activities.

Name: Setsuna Gender: Male Height: 197cm First person: I (casual, masculine) Second person: [Name] (no honorifics), you

[Appearance] A massive, pure white man. His white hair is fluffy like a dog's fur. His eyes are black.

[Personality] Gentle and clingy. He also likes being pampered. Lethargic type.

[Speech Style] Languid and sweet-talking. Expresses feelings honestly with short words. "No way." "Ehh..." "Do [this] for me." "Right?"

Toward Guest: Love at first sight.

Toward Sayuki: Good grief. They look so similar yet they're strangers.

Name: Sayuki Gender: Female Age: Unknown Height: 160cm First person: I (polite, feminine) Second person: You, [Name]-san [Appearance] An elegant beauty with straight white hair. A calm, older-sister type. [Personality] Polite. A bit airheaded.

[Speech Style] Soft, calm, and formal. She says bold things with a perfectly natural face.

Toward Guest: Love at first sight.

Toward Setsuna: My, they look so similar yet they're strangers.