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.
The opening song, '여전히 아름다운지' ('Are You Still Beautiful?') by Kim Yeon-woo, was a massive ballad hit in 1999. It became so tied to the idea of longing for a first love that Koreans of this generation almost instinctively connect it to that feeling — which is exactly why it plays over footage of the wife's college-era crush.
야동 (ya-dong) is everyday Korean slang for pornography — a shortening of 야한 동영상, literally 'lewd video.' It is blunt but not considered shocking in casual speech among adults, similar to how English speakers might say 'porn' offhandedly.
첫사랑 (cheot-sarang), literally 'first love,' holds an almost mythological status in Korean culture — it's the subject of countless songs, dramas, and films. The common belief the husband voices, that a man's first love stays with him forever, is a widely repeated cultural saying rather than just a personal opinion.
The subtitle asterisk points to 'TV는 사랑을 싣고' ('TV Carries Love'), a long-running KBS variety show (1994–2010) that reunited people with lost loved ones — childhood friends, first loves, separated family members. Mentioning it here is a gentle joke: the father's first love is so vivid it could be a segment on that show.
When the father-in-law raises remarriage less than a year after his wife's death, the daughter's furious reaction reflects a real cultural tension: traditionally, adult children — especially daughters — feel a deep obligation to keep the deceased parent's memory honoured, and a quick remarriage can feel like erasure. His phrase '보내줘야지' ('shouldn't you let her go?') versus her insistence that letting go so soon is a betrayal captures this clash precisely.
투석 (dialysis) is long-term kidney treatment requiring sessions several times a week, often for years. The future Ma Jin-joo has apparently known about her mother's illness long enough to understand medical terms like 합병증 (complications) — which is why the 1999 doctor is puzzled when 'a son' who doesn't exist seems to know too much about the case.
H.O.T. (에이치오티) were arguably Korea's first full-scale idol group, debuting in 1996 and dominating teen culture through the late 1990s. Their fans — called 오빠부대 (oppa troops) — wore matching white outfits and bandanas or headbands in the group's colours to concerts. Wearing an H.O.T. headband in 1999 was an unmistakable fan-culture signal.
엄친아 is a very popular Korean slang term — short for '엄마 친구 아들' (your mom's friend's son). It describes a young man who seems to excel at everything: handsome, rich, smart, well-mannered. Korean mothers famously compare their children unfavourably to this idealized figure, so the word became a tongue-in-cheek label for anyone almost impossibly perfect.
The hip-hop tracks playing in this scene — Uptown's '다시 만나줘' and later Drunken Tiger's '난 널 원해' — were genuine hits from the late 1990s Korean hip-hop wave. Uptown and Drunken Tiger were pioneers who brought R&B and rap to the mainstream. For a ballerina to be quietly listening to these songs on a Walkman in 1999 would have felt refreshingly unexpected.
가오 is slang borrowed from Japanese (顔, face) meaning personal dignity or street credibility. When the boys say a man has to maintain '가오' by being the one to ask a girl out first, they're voicing a real 1990s–2000s dating norm: the expectation that confessing first is the man's prerogative. A girl asking was seen as unfeminine or as stealing the man's moment.
대학 축제 (university festival) is typically held each spring and is one of the biggest social events of the Korean academic year — with performances, food stalls, drinking, and contests. 메이퀸 (May Queen) is a beauty-and-personality contest held at these festivals, where female students from each department are nominated by their peers. Being named a department's May Queen candidate was a notable social honour.
In Korean rom-com culture, sharing an umbrella (우산) in the rain is one of the most recognizable signals of budding romance — so common it is almost a visual shorthand. The comedy here comes from the umbrella being comically small, making one person inevitably get wet, which the drama plays as a proxy argument for who cares more about the other person.
장인 (jang-in) literally means 'father-in-law.' The moment the young man accidentally blurts it out to a father he has just met for the first time — having announced his dream is to marry the man's daughter — is played as absurd overconfidence. In Korean culture, calling someone 장인 before any engagement is deeply presumptuous, which is why the father reacts with such comical disbelief.