13 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.
Golf in Korea is strongly associated with wealth and elite networking. A driving range visit or round of golf is often where business deals and political favors get quietly arranged, making it a natural backdrop for surveilling someone like Shin Young-jun. Membership at a private course can cost tens of millions of won.
복권방 are small street-level kiosks that sell lottery tickets and scratch cards. They are a common sight near apartment complexes and markets. Renting one out cheaply to a local operator as a cover for managing a property is plausible precisely because the business looks completely ordinary and low-profile.
동지 is a major traditional Korean seasonal marker — the shortest day of the year — falling around December 22nd. The old proverb the weather forecast quotes warns that a warm, mild 동지 foretells sickness and death in the coming year. It is not just superstition; it was once used to predict crop disease and epidemic seasons. The drama plants the omen deliberately.
사주 (四柱) is a Korean fortune-telling system based on the year, month, day, and hour of a person's birth. Consultants read these four 'pillars' to predict luck, career, marriage, and health. Yeong-ae saying she attached 액막이 (evil-warding charms) and 'opened his luck' means she used her skills to supernaturally boost his fortunes — and now holds that favor over him.
몰카 is a contraction of 'mole camera' — covert filming, usually of an intimate or exploitative nature. It became a major social crisis in Korea throughout the 2010s and 2020s, with tens of thousands of cases reported annually. A teacher secretly photographing children's bodies on school grounds is treated as a serious sexual-exploitation crime distinct from the assault charge, which is why police tell Jae-jun the two cases are handled separately.
Among older working-class Koreans, the Philippines — particularly Cebu and Manila — became a popular low-cost destination for long-stay 'escape' trips because of cheap living costs, warm weather, and easily available cheap fruit like mangoes. Seok-jae's offhand mention of mangoes being cheap there signals he is day-dreaming about disappearing on a budget, not a luxury getaway.
Korea has very low rates of drug use compared to other developed countries, and the stigma is correspondingly severe — especially inside Protestant megachurch circles where the pastor's family is expected to model moral purity. A church leader's daughter being caught with drugs is considered a catastrophic public scandal, not just a family matter, which explains the father's terror about the news spreading to the Korean community even in Paris.
Under Korean law, hospitals must follow strict timelines for storing bodies after post-mortem examination, and families are expected to collect and bury the deceased within a set period. Funeral halls typically keep remains at 0–4°C in a standard room or at sub-zero temperatures in a special freezer. The official pressing the family for a signature is following real procedure; the drama uses this bureaucratic reality as a plot mechanism.
In Korean social culture, especially among wealthy families, it is not uncommon for a spouse to know about an affair and choose strategic silence to protect family reputation, a child's status, and shared assets. Do-yeong explicitly names this dynamic: he kept quiet not out of ignorance but out of a calculated decision to preserve appearances. Admitting he knew all along is a devastating shift because it removes any pretense of victimhood from both sides.
촌지 literally means 'a small heart' but refers to cash or gifts slipped to teachers by parents hoping to secure better treatment for their child. The practice was widespread enough that Korea passed laws explicitly banning it, yet it persists quietly in some schools. The parent on the phone treating it as routine — something to 'vote' on at a school meeting — shows how normalized it still is in certain social circles.
The hymn the congregation sings is the Korean version of 'Onward, Christian Soldiers,' one of the most recognizable battle hymns in Korean Protestant churches. The lyrics — marching against demons and evil enemies — are not accidental background music. The show positions the scene as Dong-eun walking into enemy territory while the church literally sings about spiritual warfare, layering dramatic irony onto every line.
기상캐스터 (weather presenter) positions in Korean broadcasting are famously unstable — many are hired on short-term contracts and expected to maintain a youthful, polished image. The job carries social prestige but very little job security. Dong-eun's taunt calling Yeon-jin by that title rather than her name strips away her identity and reminds the audience that the career Yeon-jin built is far more fragile than it appears.
Korean courts grant significantly lighter sentences — often suspended sentences or fines — to 초범 (first-time offenders), especially in drug possession cases. This is why Dong-eun is unmoved by the idea that Sa-ra will be released quickly: Sa-ra's drug charge as a first offender is minor compared to Yeon-jin's position as someone already implicated in a death, which is a far more serious matter with no such leniency built in.