6 timestamped notes explaining the Korean cultural context in this episode — customs, idioms, food, honorifics, and history, at the moment each appears on screen. These notes discuss events across the whole episode. To see them revealed scene-by-scene as you watch, use the episode page to find an airing.
Korean police can form a 특별수사본부 (teukbyeol susa bonbu), a special task force assembled specifically for a high-profile or complex case — similar to a joint major-crimes unit. It sits outside the normal precinct structure and is expected to deliver results quickly, which is why the team faces heavy political pressure when a wrong suspect is caught.
When Guk-du says he'll take off his uniform alone, he's threatening to hand in his 사표 (sapyo) — a formal letter of resignation. In Korean workplace culture, offering your resignation is a dramatic gesture that also signals taking personal moral responsibility for a situation, not just quitting a job.
Bong-soon is ecstatic about becoming a 정직원 (jeongjigwon) — a permanent, full-time employee with benefits and job security. In South Korea, the gap between contract workers, interns, and 정직원 status is enormous in terms of salary, stability, and social prestige, so her celebration is completely proportionate.
Bong-soon's mum brings 불닭 (buldak) to the hospital — literally 'fire chicken', a dish of boneless chicken tossed in a furiously spicy gochujang-based sauce. It became a Korean street-food craze in the early 2000s and is still a benchmark for spice tolerance, which is why Min-hyuk's eyes water after just a few bites.
Grandmother passes down a handwritten book she calls the 역량기 (yeongnyanggi), a chronicle of the supernatural strength passed through the female line of the Do family. The idea of a clan's history being kept in a handwritten ledger or 기 (gi, meaning record) echoes real Korean traditions of family genealogy books called 족보 (jokbo), which families have maintained for centuries.
Min-hyuk's admission that he thinks he likes Bong-soon is a 고백 (gobaek) — a formal confession of romantic feelings. In Korean dating culture, a 고백 is a distinct, deliberate step that signals the intention to move from friendship to a relationship, which is why the moment carries so much weight even when phrased with careful uncertainty.