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.
In Korean drug slang, '그람' (gram) is a common unit for methamphetamine (필로폰, philopon). Saying '500그람' here refers to a drug dose being handed over, not a food ingredient. Methamphetamine abuse has been a persistent public concern in Korea, and this kind of coded, casual-sounding language is how users and dealers often speak about it.
'약쟁이' (yak-jaeng-i) is a derogatory Korean word for someone addicted to drugs — roughly 'junkie' or 'druggie.' The '-쟁이' suffix is a contemptuous label attached to a habit or trait, so the insult is both about the addiction and about looking down on the person as defined entirely by it.
'시에스타' is the Korean spelling of 'siesta,' the Spanish word for an afternoon nap. The character is making a sleazy pun: the name of his edit shop sounds innocent, but he chose it because of his afternoon rendezvous there. Naming a boutique with a foreign word is very common in Korean retail — it signals a fashionable, imported image.
보육원 (boyugwon) are South Korea's government-run children's homes. Children who grow up together there often call one another '오빠' (older brother) or '언니' (older sister) regardless of blood relation, forming a tight surrogate-family bond. This shared background explains why Dong-eun's friend still feels loyalty and can call in favors from the men she grew up with.
수의 (suui) is the traditional white funeral garment sewn by hand and placed on the body before burial in Korean custom. Dong-eun tells her student he will end up in one no matter how his grades turn out — a cold, matter-of-fact death threat disguised as a tutor's observation. Invoking a 수의 is one of the bluntest ways a Korean speaker can tell someone their fate is already sealed.
Lee Se-dol (이세돌) is South Korea's most celebrated professional Go player and one of the greatest in the game's modern history. He is internationally known for being the first human to win a game against Google DeepMind's AI, AlphaGo, in their 2016 match. In Korea, asking 'Do you want to beat Lee Se-dol?' is like asking a beginner chess player if they want to beat a world champion — it signals an absurdly high bar.
청심환 (cheongsimhwan) is a traditional Korean herbal pill, originally used in Oriental medicine to calm the heart and mind. Before major Korean exams — especially the 수능 (university entrance exam) and national license tests like 임용고시 — it has become a cultural ritual for parents and students to take one, believing it eases anxiety and steadies nerves. Pharmacies see a big spike in sales every exam season.
임용고시 (im-yong-go-si) is South Korea's highly competitive national exam that graduates must pass to become a public school teacher. Pass rates are extremely low — sometimes under 10% in popular subjects — so a first attempt rarely succeeds. Dong-eun's voiceover noting she passed on her second try is presented as a genuine achievement, not a failure.
길상사 (Gilsangsa) is a well-known Buddhist temple tucked inside a quiet residential neighbourhood in northern Seoul. It was famously donated to the Buddhist order in 1997 by a former high-end restaurant owner who gave up a property worth billions of won after being inspired by a monk's writings. It is a popular spot for Seoulites seeking calm in the city, and weather reports filmed there signal the arrival of spring.
영춘화 (yeongchunhwa) literally means 'flower that greets spring' and refers to the winter jasmine, a small yellow blossom that appears before most other flowers. The broadcast also mentions it was called 어사화 (eosahwa) — a flower ornament placed on the hat of the top-ranking scholar who passed the Joseon-era civil service exam (과거). The detail layers a sense of elite achievement and seasonal renewal over the scene.
The phrase '부모 잘 만나다' (born to good parents) is a bitterly common expression in Korea for the idea that family background determines life outcomes more than effort or talent. It is the Korean equivalent of 'winning the birth lottery.' Using it here — looking at a golf course and a boutique owned by the group's children — captures a widespread social frustration in contemporary Korea about inherited wealth and class immobility.
In Korea, apartment hunting is often done through small neighbourhood real estate offices called 부동산 (budongsan). When a unit becomes available, the agent calls directly and tells you to come with your 도장 (dojang) — a personal name seal used instead of a signature on contracts. This moment signals that Dong-eun's long-planned next move is finally becoming physically real.
The episode ends with Dong-eun being asked to kill someone's husband. This is not a suicide pact, but it echoes a recurring Korean dramatic theme where a person trapped in an abusive or corrupt marriage seeks an outside accomplice rather than legal channels, reflecting real anxieties about how money and connections can shield the powerful from the law.