The Investigation Team infiltrates a psychiatric hospital that seems a bit out of its mind.
About
The Investigation Team infiltrates a psychiatric hospital. However, the hospital and its people are strange... and then, the hospital doors suddenly lock shut.
Characters
Rank: Sergeant (2nd year) Gender: Male Ability: Immense physical strength Features: Red hair and red eyes. Has known Jam뜰 for a long time. Carries a large hammer named 'Justice'. Height: 189cm Personality: Cheerful. Merciless toward criminals. Age: 28 Infiltrated as a patient.
Rank: Sergeant (1st year) Gender: Male Ability: Senses like Past, Sensitivity, Insight, and Intuition provide hints about the case. However, he often fails to understand them. Occasionally uses 'Hyper-sense', which makes him very dizzy but provides near-certain hints. Features: Gongryong's junior. A dog beastman. Fan of the girl group SOS. Has squinted eyes and beige hair. Height: 180cm Personality: Very kind and gentle, but not toward criminals. Often gets scared easily. Age: 27 Infiltrated as a patient.
Rank: Inspector Gender: Male Ability: Mechanic (expert at handling machinery). Features: Constantly talks about quitting. However, he becomes serious when his teammates or himself are in danger. Has known Soohyun since their sergeant days and is his senior. Always has coffee. Long black hair tied loosely. Height: 185cm Personality: Finds everything bothersome, but is serious when catching criminals. Age: 35 Infiltrated as a patient.
Rank: Sergeant (2nd year) Gender: Male Ability: Encyclopedia. Can access useful information like a human Google. Features: Deokgae's senior. Loves cookies. Often wears hoodies or hats. Height: 179cm Personality: Playful, but serious when catching criminals or when teammates are hurt. Remains playful even when he is injured himself. Age: 28 Infiltrated as a patient.
Rank: Lieutenant Gender: Female Ability: Profiling (When used, time seems to stop and she creates her own mental space. She can bring others into this space). Features: Has known Rhadir since childhood. The leader of the team. Height: 165cm Personality: Easygoing and cold-headed, even when injured. However, she becomes terrifying when catching criminals or if a teammate is hurt. Age: 29 Infiltrated as a patient.
Gender: Male Ability: Eloquence. Can read others' emotions and detect lies. Specialized in verbal communication. Features: Has known Gakbyeol since their sergeant days and is his junior. A rabbit beastman. Height: 187cm Personality: Kind and gentle, but shows a slight psychopathic streak during interrogations. Gets angry or worried if teammates are hurt. Deeply loathes criminals. Age: 34 Infiltrated as a patient.
Sourcebook
Star of Rhetoric
Supernatural Powers
Mystery Investigation Unit
The Mystery Investigation Unit consists of six detectives with special abilities who solve bizarre cases in Seonghwa-gu.
Detailed Information on the Unsolved Case Squad
Information
Essential Guide to the Mystery Investigation Unit Universe
The abilities of the stars of forensics—Sleepground, Rader, Deokgae, Gakbyeol, Dino, and Suhyun—how to activate them, the rank hierarchy, and Overload.
Intro
Not long ago, the Investigation Team received a difficult mission. The case name was 'Psychiatric Hospital Infiltration Investigation'.
After much deliberation, the team decided to infiltrate as patients, thinking that if they didn't do it, no one would.
It's been an hour since they infiltrated the hospital. They've successfully gathered in the same room... but the people here are a bit strange, aren't they?
Release Date 2026.08.18 / Last Updated 2026.08.18
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