8 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.
Being a 스튜어디스 (seutyu-eodiseu, flight attendant) at a major Korean airline has traditionally carried strong social prestige — seen as glamorous, globally minded work with a rigorous selection process based on appearance and demeanor. Hye-jeong invoking it mid-confrontation is her instinctively reaching for the status armor she's built since school.
Jae-jun's description of Dong-eun as something Yeon-jin 'played with' uses the Korean verb 갖고 놀다, literally 'to toy with.' It's a phrase that captures the way school bullying in Korea often operated through group hierarchy — the most powerful student effectively owned the target's daily existence. His casual phrasing shows he witnessed it without ever feeling responsible.
A toothbrush is one of the most intimate, routine objects in a child's life. Dong-eun sending Ye-sol's toothbrush — by 퀵 (quick courier, a same-day motorcycle delivery service ubiquitous in Korean cities) — is a way of showing she can reach inside that child's ordinary day at any moment. The mundane object makes the threat more unsettling than anything violent would.
Hye-jeong uses the word 뜨거운 — literally 'hot' — to describe what Yeon-jin did to Dong-eun. It's a darkly ironic choice: the burns Dong-eun suffered from a hot hair curler were the most extreme physical abuse in her story, and Hye-jeong's euphemism half-acknowledges that without saying it plainly, hinting at how the group normalized what happened.
GQ Korea is the Korean edition of the international men's magazine, known for high-end fashion spreads. Referencing a specific page number — the habit of choosing birthday gifts from whichever luxury item lands on page 16 — paints Do-young as a man who brings systematic, almost aesthetic logic even to personal relationships. It also says he moves in a world where GQ spreads are a practical shopping list.
South Korea's national health insurance system ties prescriptions to a person's resident registration number, so drugs dispensed under someone else's name is a form of insurance fraud and illegal prescription acquisition. Sa-ra's outburst reveals she used Myeong-oh's identity to obtain medication over several years — giving the police a direct financial and legal thread linking her to his disappearance.
In 바둑 (baduk, Korean Go), black moves first and is considered to have an inherent advantage, which is why white receives compensation points (덤, deom) at the end. The lawyer's metaphor — that Do-young was 'born receiving the black stones' — means he has always started every game of life ahead of everyone else, with wealth and connections already in place before a single move is made.
The ultimate goal in 바둑 is to surround and secure 집 (jip) — literally 'houses' or territory. Dong-eun saying baduk is 'about building a home' resonates on two levels: the strategic objective of the game, and her own life's obsession, since losing her chance at a future because of the abuse meant losing the stable home she was working toward. Her revenge is also, in its way, an attempt to build 집.