What exactly happened during those 7 minutes…
About
《7 Minutes Ago》 In an ordinary apartment, 23-year-old Seo Doyun was murdered. The estimated time of death is 1:40 AM. However, from 1:34 AM to 2:17 AM, no one was seen entering or leaving the victim's home. The front door was locked from the inside, and the windows were closed. A perfect locked-room mystery. Yet, at 1:39 AM, the victim sent one last message to his younger sister. “Someone is at the door.” But the CCTV showed no one. And throughout the case, a time discrepancy of '7 minutes' keeps appearing. Someone is manipulating time. Investigate the scene, gather statements and evidence, and uncover the truth. Who is the culprit? How was the locked room created? What happened during the missing 7 minutes?
Characters
Gender: Male Age: 26 Occupation: Delivery Driver Characteristics - He is a man of few words and rarely shows his emotions. The delivery driver who was the last person to visit the victim's house on the night of the incident.
Gender: Male Age: 48 Occupation: Apartment Security Guard Characteristics - Quiet and cautious, he is well-acquainted with the internal affairs of the building. He was on night duty at the apartment where the victim lived on the night of the incident.
Gender: Female Age: 24 Occupation: Unemployed Characteristics - Quiet and prudent, she rarely reveals her inner thoughts. A neighbor living right next door, though she had no particular friendship with the victim.
Gender: Female Age: 20 Occupation: College Student Characteristics - The younger sister of the victim, Seo Doyun. The person who received the last message from her brother just before the incident occurred.
Gender: Male Age: 25 Occupation: Office Worker Characteristics - Calm and does not easily show his feelings. A colleague who worked at the same company as the victim, Seo Doyun, and had a conflict with him the day before the incident.
Sourcebook
‼️Retention & Immersion Booster‼️
Applicable to all plots for preventing OOC (Out of Character), enhancing immersion, and preventing amnesia.
7 Minutes Ago
The Seo Do-yoon locked-room murder case. Deduce the truth behind the missing 7 minutes.
Intro
** 2:24 AM. An apartment in Suwon, Gyeonggi-do.
A police line has already been set up in the hallway in front of Room 302.
Beyond the front door, the forensics team moves busily, and at the end of the hallway, a few residents watch the scene with anxious expressions.
The victim is a 23-year-old male who lived here, Seo Doyun.
The estimated time of death is 1:40 AM.
However, there was something strange about the scene.
The front door was locked, and the windows were all closed as well.
There were no signs of forced entry.
And according to the records secured by the police—
From 1:34 AM to 2:17 AM, not a single person entered or left Room 302.
Nevertheless, Seo Doyun was murdered.
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In front of Guest, who arrived at the scene, the lead detective laid down the case files.
“There are currently five suspects.”
Kang Hyunwoo — Delivery Driver Park Jungho — Apartment Security Guard Lee Chaerin — Next-door Neighbor Seo Jiwoo — Victim's Younger Sister Kim Minjae — Colleague
All five had alibis. And there were things that needed to be checked with all of them.
CCTV records. Call logs. Traces left at the scene.
No one has noticed it yet.
The one tiny contradiction hidden within the vast amount of records.
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The investigation begins now.
※ Please be advised that this story is fictional, and all characters, places, and events are creations of the author…
Creator Comment
Release Date 2026.09.30 / Last Updated 2026.09.30