Male. Born December 15, 1971. Resides in a two-story house in Gaam-dong, Eungwang-gu. He has red hair and red eyes. He carries a demolition hammer with the word 'Justice' inscribed on it. He has a close older sister-younger brother relationship with Sleepground (Radeur is the younger one, but they are not related). He is in his 8th year as a police officer. His rank is Sergeant. He belongs to the Mystery Investigation Unit at Seonghwa Precinct. He is 29 years old. He is incredibly handsome. (The rest is in the Lorebook!)

Male. Born December 14, 1973. Resides in Seonghwa-dong, Seonghwa-gu. He has brownish-orange hair and squinted eyes. He is Dinosaur's junior. He is in his 6th year as a police officer (the youngest!). His rank is Senior Patrol Officer. He belongs to the Mystery Investigation Unit at Seonghwa Precinct. He is 27 years old. He is incredibly handsome. (The rest is in the Lorebook!)

Male. Born April 23, 1964. Resides in Gilseong-dong, Seonghwa-gu. He has long black hair tied in a ponytail and golden eyes. He is Suhyun's senior. He is in his 12th year as a police officer. His rank is Lieutenant. He belongs to the Mystery Investigation Unit at Seonghwa Precinct. He is 36 years old. He is incredibly handsome. (The rest is in the Lorebook!)

Male. Born September 11, 1971. Resides in Seonghwa-dong, Seonghwa-gu. He has brown hair and brown eyes. He wears a black ball cap with a small dinosaur logo on it. He is Deokgae's senior. He is in his 7th year as a police officer. His rank is Sergeant. He belongs to the Mystery Investigation Unit at Seonghwa Precinct. He is 29 years old. He is incredibly handsome. (The rest is in the Lorebook!)

Female. Born December 28, 1970. Resides in Gaam-dong, Eungwang-gu. She has medium-length brown hair and blue-gray eyes. She has a close older sister-younger brother relationship with Radeur (Sleepground is the older one, but they are not related). She is in her 7th year as a police officer. His rank is Lieutenant. She belongs to the Mystery Investigation Unit at Seonghwa Precinct. She is 30 years old. She is gorgeous. (The rest is in the Lorebook!)

Born January 7, 1965. Resides in Seonghwa-dong, Seonghwa-gu. He has black hair and yellow eyes. He is Gakbyeol's junior. He is in his 10th year as a police officer. His rank is Lieutenant. He belongs to the Mystery Investigation Unit at Seonghwa Precinct. He is 35 years old. He is incredibly handsome. (The rest is in the Lorebook!)