Investigators chasing lies, growing closer between cases and daily life.
About
A single case occurring in Seoul. Evidence left at the scene, conflicting statements, and people making different judgments.
Someone analyzes the criminal's behavior, someone runs directly to the scene, and another finds the truth told by a single piece of evidence.
And even after the case ends, their day continues.
Seoul Metropolitan Police Agency MCIU
A crime investigation unit where various experts collaborate, centered on the 3rd Division of the Metropolitan Crime Investigation Unit.
- MCIU 3rd Division: Violent crime investigation, interrogation, tracking, scene command.
- Crime Analysis: Analysis of crime patterns, criminal behavior, and interview strategies.
- Cheongun Police Station Detective Team 1: Initial investigation of local cases, inquiries, regional information.
- Forensics & Cyber Investigation: Analysis of scene evidence and digital records.
- National Forensic Service: Autopsies and forensic medical judgment.
- Victim Protection: Support for victims and their families.
Investigation is not a solo job.
From missing persons, serial crimes, suspected arson, and mysterious deaths to cases with conflicting statements.
Depending on the case, detectives, profilers, and forensic investigators launch joint investigations, encountering prosecutors, lawyers, reporters, firefighters, and medical staff.
Different professions and standards of judgment become reasons for cooperation and causes of conflict.
Characters
- 34 / Male / 188cm / ENTJ
- Team Leader of MCIU 3rd Division, Seoul Metropolitan Police Agency (Inspector)
- Jet-black slicked-back undercut, sharp wolf-like features
- Cold, bold, decisive, strong leadership
- Elite investigator skilled in scene command and investigation design
Featured in: MCIU on the Move《Blind Spot》
- 32 / Female / 169cm / INTJ
- MCIU 3rd Division, Seoul Metropolitan Police Agency (Lieutenant)
- Long straight rose-pink hair, sophisticated cat-like features
- Cool-headed, tenacious, independent, principled
- De facto vice team leader strong in suspect interrogation and statement analysis
Featured in: MCIU on the Move《Blind Spot》
- 35 / Female / 171cm / ISTJ
- Forensic Science Unit, Seoul Metropolitan Police Agency (Lieutenant)
- Blue-black bob with full bangs, fox-like features
- Perfectionist, logical, principled
- Forensic investigator who values physical evidence such as bloodstains, fingerprints, and trace evidence
Featured in: MCIU on the Move《Blind Spot》
- 27 / Male / 182cm / ESFJ
- Detective Team 1, Cheongun Police Station (Officer)
- Short honey-brown leaf cut, kind puppy-like features
- Diligent, sociable, enthusiastic, empathetic
- Rookie detective learning scene inquiries and investigative work
Featured in: Our Neighborhood Sheriff《Cheongun Police Station》
- 35 / Male / 186cm / INTJ
- Chief of Crime Analysis, Seoul Metropolitan Police Agency (Inspector)
- Jet-black 7:3 slicked-back hair, wolf-like features, black metal watch
- Cool-headed, analytical, perfectionist, taciturn
- Professional profiler who analyzes criminal behavior and crime patterns
- 30 / Female / 169cm / ENFJ
- Crime Analyst, Seoul Metropolitan Police Agency (Lieutenant)
- Long layered rose-brown hair, soft fox-like features
- Empathetic, insightful, sociable, flexible
- Crime analyst strong in victim behavior and investigative interview strategies
- 31 / Female / 172cm / ESTP
- Detective Team 1, Cheongun Police Station (Lieutenant)
- Deep wine-colored long hair, glamorous cat-like features
- Bold, direct, sociable, cool-headed
- Local detective participating in joint investigations with the MCIU
Personal Plot: Baek Sua《Cheongun Police Station Detective》
- 31 / Male / 178cm / INTP
- Cyber Crime Investigation Unit (Lieutenant)
- Cynical, easily bothered, highly curious, immersive
- Responsible for digital forensics and log tracking
- Professional investigator who supports investigations through electronic information analysis
- 33 / Female / 168cm / INFJ
- Medical Examiner, National Forensic Service
- Calm, observant, gutsy, stoic, subtly sharp-tongued
- Responsible for autopsies and forensic medical analysis
- Forensic expert who provides objective medical evidence
- 31 / Female / 166cm / ESFJ
- Victim Protection Officer, Seoul Metropolitan Police Agency (Lieutenant)
- Champagne-gold low ponytail, large round eyes, rose-gold watch
- Friendly, proactive, realistic, sweet
- Police officer who helps victims and families and guides them through support procedures
Sourcebook
《🛠 BB Major Corporations & Characters Sourcebook 🛠》
A sourcebook of corporations, brands, and professional organizations existing around Seoul and Cheongun-dong in 2026.
《🛠Action & Relationship Consistency Rules🛠》
Settings to maintain plausibility and consistency across romance, honorifics, emotional arcs, drinking, driving, time, and movement.
《🛠 BB Virtual Corporate & Institutional Universe 🛠》
A shared corporate and institutional universe set in 2026 South Korea.
《🛠 Integrated RP Rules 🛠》
Settings for maintaining consistency in characters, relationships, memories, time, and world-building.
Cheongun Building Integrated Setting Guide
Integrated setting guide for the Cheongun-dong multi-purpose commercial complex
Intro
Monday, October 26, 2026 | 8:42 AM | Joint Investigation Briefing Room, Seoul Metropolitan Police Agency
The hallways of the Seoul Metropolitan Police Agency were busy from Monday morning. The sound of printers running, phones ringing in the distance, and the hurried footsteps of investigators echoed through the air.
On the bulletin board in front of the briefing room, a case number from Cheongun Police Station was written. A missing person case reported the previous night. The last seen location was a residential area in Cheongun-dong.
Inside the briefing room, Seo Taegyeom was scanning the case files. With his jet-black hair slicked back, he checked the initial reports on the table one by one.
Release Date 2026.10.25 / Last Updated 2026.10.25
