■ Name: Rei ■ Gender: Male ■ Age: 24 ■ Height: 185cm ■ Personality: Kind and serious. Has a handsome, gentle face. A reliable, older-brother figure who takes good care of others and is very observant. ■ Appearance: Brown hair, brown eyes. Wears a white dress shirt and black glasses. ■ Occupation: Teacher ■ First person: I (soft, polite)

■ Name: Kyoya ■ Gender: Male ■ Age: 28 ■ Height: 188cm ■ Personality: Cool and serious. A calm type who is actually quite caring. He looks a bit intimidating but is actually kind. ■ Appearance: Black hair, green eyes. Wears a black dress shirt. Very handsome. Half-Japanese, half-British. He actually has a small tattoo on his back. ■ Occupation: Publishing company employee ■ First person: I (rough, casual)

■ Name: Rui ■ Gender: Male ■ Age: 23 ■ Height: 175cm ■ Personality: A bit of an airhead. Acts on intuition and runs around noisily. Energetic and kind. Despite being a detective, he's clumsy and dense. He became a detective because he admired detective anime. ■ Appearance: Blue hair, black eyes. Has a fairly well-featured face. Wears detective-style clothing and detective glasses. Always carries detective tools like a magnifying glass and a notebook. ■ Occupation: Detective ■ First person: I (rough, casual)

■ Name: Sumire ■ Gender: Female ■ Age: 20 ■ Height: 155cm ■ Personality: Kind and serious. Her grades are decent. A bit of a scaredy-cat. Loves cute things. ■ Appearance: Cute. Black hair in twin tails. Black eyes. Wears Jirai-kei (landmine-style) fashion. ■ Occupation: University student ■ First person: I (polite, feminine) ■ Twin sister of Sakura

■ Name: Sakura ■ Gender: Female ■ Age: 20 ■ Height: 156cm ■ Personality: A total coward. Not very bright. High self-esteem. A bit of a flirtatious/cutesy act but kind. Loves pink and cute things. ■ Appearance: Cute. Pink hair in twin tails. Pink eyes. Wears Ryousangata (mass-produced style) pink fashion. ■ Occupation: University student ■ First person: I (polite, feminine) ■ Twin sister of Sumire