12 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 detectives are required by law to state the specific charge out loud when making an arrest — here it is 살인 혐의 (sal-in hyeui), meaning 'suspicion of murder.' The formal phrasing mirrors a Miranda-style caution and must be delivered before any restraint is applied.
The nutria is a large South American rodent that became an invasive pest in Korean wetlands after fur farms collapsed in the 1980s. The government ran an official eradication programme paying hunters 20,000 won (roughly $15) per animal caught — exactly what Seok-do brags about. Calling himself the '금가동 뉴트리아' (Geumga-dong nutria) is his way of saying he is a relentless, unkillable predator of the neighbourhood.
Hong-sik says he once 'ate knife rice' (칼 밥 먹다) inside an organisation — a vivid slang phrase for living the criminal underworld life, where 'knife' evokes both weapons and the constant danger of that world. The idea of 'washing your hands' (손 씻는다) to leave that life behind is a common Korean idiom for going straight, and he is gently telling Vincenzo not to waste his skills once the mission is over.
믹스커피 (믹스 커피) is a single-serve sachet containing instant coffee, powdered creamer, and sugar, stirred into hot water. Brands like Maxim Mocha Gold are so deeply embedded in Korean office and home life that many Koreans genuinely feel it tastes better than café espresso. Vincenzo saying he will never forget this flavour is a small sign of how much Korea has gotten under his skin.
영정 사진 (yeongjeong sajin) is the formal portrait displayed at a Korean funeral altar and grave. It is culturally important that the photo looks dignified and peaceful, so many older Koreans arrange to have one taken while they are still well. Gyeong-ja wanting a suitable photo now, given her illness, is a quiet and very Korean way of acknowledging she is preparing for death without saying so directly.
흑기사 (heuk-gisa, 'Black Knight') is a Korean drinking-game rule where someone volunteers to drain another person's glass for them — rescuing them from a penalty drink. 흑장미 ('Black Rose') is the female version of the same role. Shouting these terms during a party round is a standard way to dodge your own shot by finding a willing stand-in.
당근마켓 (Danggeun Market, literally 'carrot market') is South Korea's dominant hyperlocal secondhand marketplace app, similar to Facebook Marketplace but limited to your immediate neighbourhood. Ju-seong casually sold the expensive kopi luwak on it because it was too much hassle to brew — a joke about how mundane the app has made selling even luxury items.
The show has consistently named the villain's conglomerate 'Babel' after the biblical tower built in human arrogance that God caused to collapse. Vincenzo's line about doing things 'as written in the Bible' ties the finale's plan directly to that founding metaphor — bringing down the tower and scattering the people who built it is the show's central symbolic promise.
The proverb Vincenzo quotes — 'catch a big fish with a small bait' — is a classic Italian fishing expression used throughout Mediterranean cultures to describe a clever, patient trap. The show subtitles it in Korean for viewers, emphasising that this is Vincenzo's Italian mafia training speaking, not Korean street wisdom; it marks him as operating on a different, colder level of strategy.
붕어빵 (bungeo-ppang) are small pastries pressed in a carp-shaped iron mould and filled with red-bean paste or, increasingly, sweet custard (슈크림). They are sold from wheeled carts by street vendors mainly in autumn and winter. Cha-yeong immediately naming her preferred filling — sweet cream — is a reflex familiar to any Korean: everyone has a strong opinion on 팥 (red bean) versus 슈크림.
묻지 마 살인 (muji-ma sal-in) literally means 'no-questions-asked murder' — the Korean term for a motiveless, random attack on a stranger. It became a recognised social category in South Korean media and law enforcement discourse after a series of high-profile cases. Vincenzo repeating the term back to the killer is chilling precisely because Korean viewers know exactly what it means and how it is used to deflect responsibility.
Korean adoptions in past decades often involved children being sent abroad with little or no ongoing contact between birth mother and child, making reunion decades later a recognised and emotionally loaded social phenomenon. Jang Joon-woo reveals he targeted Gyeong-ja specifically because she is the biological mother Vincenzo was separated from at birth — making her murder the most personal wound the villain could inflict.