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.
Vincenzo quotes a well-known Korean saying: you can hide a flame, but you can't hide the smoke. It's the local equivalent of 'where there's smoke there's fire' and is often used to mean that evidence of wrongdoing always leaks out eventually.
콘실리에리 (consigliere) is an Italian word meaning 'counsellor' — the trusted advisor who sits just below the boss in a traditional mafia family structure. Cha-young casually drops it in a police interview as if it were a perfectly ordinary job title, which is part of the joke.
길벗 is a beautiful old Korean word meaning 'a friend who walks the road of life alongside you.' The homeless man is deeply proud of this name, which is why he rejects Vincenzo's Italian mispronunciation of it as 'Gilbert' — to him the Korean meaning matters.
Cheol-uk's cry of '인터넷 강국 코리아!' (Internet powerhouse Korea!) riffs on a real national pride point — South Korea has consistently ranked among the world's fastest and most widely connected nations for broadband and mobile data, a fact Koreans genuinely boast about.
Seo the lawyer does impressions of the two lead actors from the 2019 Oscar-winning film 기생충 (Parasite): first Lee Sun-kyun, who played the wealthy father, and then Song Kang-ho, who played the scheming basement patriarch. The joke lands because both men have very distinctive voices that Koreans instantly recognise.
붕어빵 (bungeo-ppang, 'crucian carp bread') are fish-shaped waffles filled with sweet red-bean paste, sold from street carts in winter — a beloved cold-weather snack. 잉어빵 (ingo-ppang, 'carp bread') look almost identical but are technically a different product with a slightly crispier batter. The debate over which is which is a real, ongoing, very Korean argument.
A 기요틴 (guillotine) is the French beheading device, and naming a blackmail dossier after it is deliberately dramatic. The show's fictional file — a single archive of every politician's, prosecutor's, and tycoon's secret wrongdoing — mirrors real South Korean anxieties about intelligence agencies keeping dirt on powerful figures as leverage.
Ahn Gi-seok suddenly mimics the catchphrase '그런데 말입니다' (But here's the thing…), the signature opener of the narrator on the long-running mystery documentary show 그것이 알고 싶다 (I Want to Know That), voiced by actor Kim Sang-joong. It's an instantly recognisable phrase for Korean viewers, used here for comic effect mid-briefing.
Han Seung-hyeok yells 'Boys Be Ambitious!' — a famous line attributed to American educator William Clark, who came to Hokkaido in 1877 and is widely taught in East Asian schools. Koreans and Japanese both know it as an inspirational motto, which makes Seung-hyeok's absurd use of it here — to encourage fratricide — darkly comic.
조 사장 confesses he went 몰빵 — a slang term meaning to bet everything on one thing, 'all-in.' He rattles off virtual currency, stocks, horse racing, and sports lottery in one breath, each of which is a legally distinct gambling or speculation market in Korea. The combination reveals just how badly he spiralled.
주성 specifies the spa water is 53 °C with a pH of 8.3 — details Koreans take seriously at 온천 (hot-spring resorts). Visiting a jjimjilbang or onsen-style resort for a 1박 2일 (one-night, two-day) group trip is a classic Korean company outing or friend trip, which is why the plaza tenants warm to the idea so quickly.
Jang Han-seok formally announcing his name and taking control of Babel Group in front of prosecutors, politicians, and business contacts is a deliberate power move rooted in Korean chaebol culture: the heir who makes himself visible and commands the room in a single moment is seen as having seized legitimacy. Doing it while his brother is still in hospital makes it even more pointed.