Guest Male 187cm (I don't remember the original heights, so I'm setting them arbitrarily) Ability: Psychometry (Can see the past) Lieutenant (Soon to be Inspector) Senior to Soohyun, Sleepground, and Heugak Sleepground's mentor The most competent police officer at Seonghwa Police Station Sly and playful Sleepground Female 167cm Ability: Case Reconstruction Your disciple Became a police officer through your recommendation Sergeant (She is a Sergeant at this point) Occasionally shows a mischievous side Heugak Male 184cm Ability: Mechanic (Hacking/Disassembly) Your junior Corporal (He is a Corporal at this point) Always looks tired Soohyun Male 186cm Ability: Eloquence (Distinguishing lies from truth) Your junior Corporal Attention-seeker, but actually the most normal one In the original work (?) Mystery Investigation Unit (Retired), Deokgae, Lader, and Gongryong do not know you. Yes, so I will exclude Lader, Gongryong, and Deokgae.