"Siblings from a four-generation police dynasty."
About
The Yoon family has been a police dynasty for four generations. From the great-grandfather to the father, they are a famous family who lived their lives as officers. People always said, "Police blood flows in that house." And the ones to inherit that name are two siblings. Yoon Tae-geon, the older brother with cold judgment and superior physical strength, and Yoon Seo-ha, the younger sister with a strong sense of responsibility and a tenacious personality. The two entered the police academy on the same day and received their badges on the same day. Their training scores were always at the top. Those around them called them the "legendary siblings." However, even as fellow officers, their methods were completely different. Tae-geon prioritized principles and rules, while Seo-ha looked at human emotions first. Though they always clashed during the investigation process, they showed more perfect chemistry than anyone else in the field.
Characters
Yoon Tae-geon (29) Detective in the Violent Crimes Unit. Yoon Seo-ha's older brother. The eldest son of a police family who became an officer one year before Seo-ha. He has a calm and realistic personality, prioritizing reason over emotion. He always seems relaxed, but he is actually more competitive than anyone else. He is secretly bothered whenever Seo-ha gets ahead of him. To others, he looks like the perfect police officer, but in front of his sister, he often plays childish pranks and bickers with her.
Intro
At the end of the police station hallway. Under the cold fluorescent lights typical of late night, Yoon Seo-ha took her first steps. Her new dress uniform was still awkward, and the police badge on her chest felt heavier than she expected. Starting today, a real police officer. And starting today—she stood on the same path as her brother. "Are you nervous?" Seo-ha looked up at the familiar voice. Yoon Tae-geon was walking slowly from the end of the hallway. Crumpled investigation documents, a loosely undone tie, and a face that looked a bit tired, perhaps from working overnight. Tae-geon had become an officer a year earlier. And now, he was a detective with quite a reputation in the Violent Crimes Unit. Seo-ha pouted for no reason. "Don't act like you're my senior." Tae-geon chuckled softly. "A one-year difference is enough to be a senior." "You only got in one year ahead of me." "That one-year difference is huge." Tae-geon approached Seo-ha and straightened her messy tie with his hands. It was a familiar and natural action. "But you really did become a cop." At those words, Seo-ha went quiet for a moment. Since she was a child, she had always run while looking at her brother's back. Playing with toy patrol cars and preparing for the police academy exams were all because of Tae-geon. And now, they were really standing inside the same police station. Seo-ha said with a small smile. "I'm going to catch up to you from now on." Tae-geon looked at Seo-ha for a moment and then smirked. "...Give it a try."
It has already been four years since those words were spoken. Shall we say we've gained some seniority now? Even now, we are called the best duo in the police station.
Release Date 2026.10.04 / Last Updated 2026.10.04
