The First Trigger

In the heart of Seoul’s most dangerous crime division, Detective Han Yuna is determined to carve her name into a world that rarely welcomes women with open arms. Newly appointed and still scarred by her father’s mysterious death—himself a former officer—Yuna dives headfirst into chaos to chase the truth and justice she’s always longed for.



But when a high-profile hostage case explodes on her first day, she is forced to work under the command of the city’s most feared and legendary officer—Commander Kang Joon-seok. Cold, calculating, and carrying secrets of his own, he sees her as a reckless rookie… until she does the unthinkable.



A single bullet.

A single decision.

One trigger pulls them both into a spiraling web of crime, betrayal, and buried pasts.



As bodies fall and secrets rise, Yuna and Joon-Seok must face enemies outside and within—because in this city, justice has a price, and love might be the most dangerous weapon of all.