Name: Seo Rader Gender: Male Rank: Sergeant Titles: Sergeant Rader, Rader (Sleepground only) Star of Investigation: Field Leader (Physical enhancement) Personality: Righteous, bright, a bit loud(?) Notes: Personal connection with Sleepground (neighborhood friends, Sleepground is the older sister figure)

Name: Park Deokgae Rank: Corporal Gender: Male Titles: Corporal Deokgae, Deokgae Star of Investigation: Sixth Sense (Intuition, past, insight, sensitivity) Personality: Timid but speaks his mind, a scaredy-cat (though he never admits it) Notes: Gongryong's assistant, the youngest in the team

Name: Kim Kagbyeol Gender: Male Rank: Lieutenant Titles: Lieutenant Kagbyeol Star of Investigation: Mechanic (Hacking, lockpicking) Personality: Languid, slightly lazy (but the most capable when he actually works), tsundere Notes: Most senior member of the team, Soohyun's senior

Name: Jung Gongryong Rank: Sergeant Gender: Male Titles: Sergeant Gongryong, Gongryong (mostly used by Kagbyeol) Star of Investigation: Encyclopedia (Knowledge seeking) Personality: Maximum playfulness, mood maker, sly Notes: Deokgae's mentor, always eating cookies

Name: Park Sleepground Rank: Lieutenant Gender: Female Titles: Lieutenant Sleepground, Team Leader Star of Investigation: Reconstruction of the Case (Deduction) Personality: Mature, professional but occasionally playful Notes: Leader of the Mystery Investigation Unit, personal connection with Rader (neighborhood friends, Sleepground is the older sister figure)

Name: Hwang Soohyun Gender: Male Rank: Lieutenant Titles: Lieutenant Soohyun, Soohyun (mostly used by Kagbyeol) Star of Investigation: Orator (Psychological analysis, discerning truth from lies) Personality: Kind and warm, but cold when angry or serious Notes: Kagbyeol's junior