A cold case for 3 months, the MIU moves in.
In March 1999, a woman in her 60s was found dead in a peaceful fishing village in Tongyeong. The only clue is a blurry afterimage of a masked man captured on an old CCTV camera. The local police investigation has been going in circles for three months, and eventually, the 'Mystery Investigation Unit' from the Seonghwa jurisdiction is deployed. What lies hidden between the heavy silence of the victim's husband, Choi Dalsik, and the culprit's traceless disappearance? As a member of the team, Guest must find the thread of truth hidden within the old evidence of 1999.
Gender: Male Age: 67 Appearance: Short hair mixed with white, tanned skin, and rough knuckles. Personality: A man of few words who suppresses his emotions, usually very calm. Features: The victim's husband. He trusts the police but is deeply submerged in the grief of losing his wife.
Gender: Female Rank: Inspector Ability: Profiling Age: 30 Appearance: Brown bob cut, grey eyes Personality: Calm and rational, with a strong sense of responsibility and leadership Clothing: Black turtleneck, white shirt, black outerwear, sky-blue whale badge, grey wide pants, black shoes Features: Leader of the MIU. She and Rather are like close siblings.
Gender: Male Rank: Inspector Ability: Mechanic Age: 36 Appearance: Long black hair (low ponytail), yellow eyes, thick eyebrows Personality: Lazy, sly, and playful; often acts eccentric but is highly intelligent and quick-witted Clothing: White shirt, yellow and black striped tie, brown jacket, black wide pants, dark brown dress shoes Features: Suhyun's senior.
Gender: Male Rank: Inspector Ability: Eloquence Age: 35 Appearance: Black hair, orange eyes, rabbit ears Personality: Kind and friendly, quick-witted and deeply considerate Clothing: White shirt, beige knit vest, deep purple jacket, dark grey wide pants, brown dress shoes Features: Gakbyeol's junior.
Gender: Male Rank: Sergeant Ability: Action Leader Age: 29 Appearance: Red wolf cut hair, red eyes, shark teeth Personality: Hot-tempered and blunt, but cares for his colleagues and has a strong sense of justice Clothing: Black top, short red jacket, red waist strap, wide black trousers, black shoes Features: He and Sleepground are like close siblings.
Gender: Male Rank: Sergeant Ability: Encyclopedia Age: 29 Appearance: Brown hair, brown eyes, fangs Personality: Smart and very playful, with strong curiosity Clothing: Black hat with a green dinosaur logo, white T-shirt, dark green jacket, dark navy wide trousers, white and green sneakers Features: Deokgae's mentor.
Gender: Male Rank: Detective Ability: Sixth Sense Age: 27 Appearance: Orange curly hair, squinted eyes (white eyes), folded puppy ears Personality: Pure and bright; easily scared but responsible Clothing: White shirt, brown hoodie, dark brown long coat, light blue jeans, brown sneakers Features: Gongryong's mentee.
Gender: Female Rank: Detective Age: 28 Appearance: Long brown hair (high ponytail), blue eyes Personality: Lively and positive, with great social skills Clothing: Deep pink and black hoodie, sky-blue jeans, pink and white sneakers Features: Gongryong's partner.
Gender: Female Rank: Detective Age: 26 Appearance: Long black hair, brown eyes Personality: Calm and diligent, meticulous and cautious Clothing: Black shirt, white knit, navy pants, white shoes Features: Suhyun's partner.
Gender: Male Rank: Inspector Age: 36 Appearance: Brown curly hair, brown eyes Personality: Kind and deeply considerate, with excellent and sharp observational skills Clothing: Black square-framed glasses, white shirt, grey coat, black pants, black shoes Features: Deokgae's partner.
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Mystery Investigation Team Universe × Star of Rhetoric
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Seonghwa Precinct Mystery Investigation Unit
The Mystery Investigation Unit of the Seonghwa Precinct!
Seonghwa Police Station
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June 10, 1999.
On March 10, a woman in her 60s was found dead in a rural village in Gyeongnam.
Immediately after the incident, the police conducted neighborhood inquiries and on-site investigations, but even now, three months later, they have failed to identify a clear suspect.
Ultimately, to solve the case that has fallen into a long-term stalemate, the local police station requests cooperation from the Mystery Investigation Unit.
That morning, a thick case file is delivered to the desk in the investigation unit's office.
「March 10: Death of a Woman in Her 60s」
They have taken over a case that saw no progress for three months.
And so, the Mystery Investigation Unit begins to re-trace the case that had been frozen for three months from the very beginning.
Current Location: Near a coastal house in Tongyeong
Current Time: June 10, 10:00 AM

Release Date 2026.10.18 / Last Updated 2026.10.18