14 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 dramas and real life, a 청장님 (chief of police) outranks everyone in a precinct. When a direct order comes down from the 청장 to close a case, detectives are expected to comply without pushback — challenging it could end a career. The phrase 정황상 자살 ('circumstantially a suicide') is often the official language used to shut down inconvenient inquiries discreetly.
복권 (bokgwon) are scratch-off lottery tickets sold at convenience stores and small kiosks across Korea. Buying one on a whim is completely ordinary — Jinho has been scratching them every week for 18 months, which is played as both comic dedication and a gentle jab at how bored chaebol heirs can be when they have nothing real to strive for.
카마수트라 (Kamasutra) is used here as a sharp put-down, implying the target is so morally shameless that the ancient Hindu text on erotic conduct would be more suitable reading for her than the Bible. Jinhee is weaponising religious propriety to shame Jasmine in front of the group.
바오로 is the Korean form of the name Paul, taken directly from Saint Paul the Apostle. Korean Catholic clergy commonly use a saint's name as their religious name — so Father 바오로 identifies himself purely by his baptismal patron, which is standard Catholic practice in Korea. The all-female Bible study having a handsome young priest arrive is a gentle comedic setup the show has been building.
방위 (bangwi) was a form of reserve or local-defence service that existed before Korea's current social-service (공익근무) system — it was considered notably lighter duty than active military service. Jinho calling it 노블레스 오블리주 (noblesse oblige) while a former marine stands next to him is the joke: he did the softest option available and is reframing it as aristocratic sacrifice.
데쓰맨 is a fictional Korean rapper woven into Heesoo's backstory across the series — she was once his obsessive fan and memorised his lyrics during her darkest years. Her son Hajun tested her memory by quizzing her on those lyrics, making them a private code between mother and child. The rapper's habit of ending songs with '칠' (chill) functions as his signature tag, like a real hip-hop ad-lib.
The on-screen text reads 산소 ('oxygen'). Seontae has turned on or tampered with an oxygen or gas supply inside the locked basement room called Cadenza, creating a suffocating or explosive environment — a key plot device in this episode's climax. Sealing someone inside a room with altered air supply is a method associated with deliberate harm.
Emma describes her past life as an 애상각 예인, a courtesan-entertainer at an 애상각, a high-class establishment where educated women called 예인 (performers/artists) sang, played instruments, and entertained wealthy guests. This tradition descends from the historical 기생 (gisaeng) culture. It carried social stigma despite requiring real artistic skill, which is why Emma frames it alongside wealth and vanity as parts of a complicated life.
Throughout the series the 블루 다이아 (blue diamond) necklace has changed hands as both a love token and a liability. Seohyeon's logic here is precise Korean legal reasoning: whoever is found holding stolen or crime-linked property can be implicated in the crime. Leaving it behind is an act of absolution; taking it is an act of confession.
딱따구리 literally means woodpecker; the household has nicknamed the bird 딱순이 — a playful feminine name (순이 is a classic, slightly old-fashioned girl's name). The joke is that a bird with no sense of social hierarchy or address registry keeps drilling holes in one of Korea's grandest mansions, which Soon-hye finds both irritating and oddly freeing — even a chaebol estate can't intimidate a woodpecker.
Father Baoro quotes the Gospel of John story of the woman caught in adultery: Jesus tells the crowd that whoever is without sin should throw the first stone (돌로 쳐라). Given that the women in this Bible study have all been entangled in affairs, jealousy, and cover-ups, the passage is pointed satire. Korean Catholic homilies frequently use direct Gospel quotation, and the priest's dry 'just pray then' reaction is very much in keeping with understated clerical humour.
들깨칼국수 is a Korean knife-cut noodle soup made with a rich, nutty broth from ground 들깨 (perilla seeds / wild sesame). It's considered a warming, home-style dish rather than a restaurant showpiece — Emma offering to make it is a gesture of genuine, unpretentious warmth. The fact that Heesoo already heard about it from her sister-in-law signals the two women's quiet bond.
빛과 소금 ('light and salt') is a phrase from the Sermon on the Mount (Matthew 5) that is deeply embedded in Korean Christian culture, used far beyond church — it appears in school mottos, speeches, and everyday conversation to mean someone who contributes quietly but essentially to society. Heesoo using it to describe what she hopes Hajun will become draws on both her faith and the broader Korean moral vocabulary.
The episode closes with Heesoo defining the show's title: 마인 can mean 'mine' as in belonging to oneself (English loanword) or '내 것' in Korean thought. Her answer — loving herself even after losing everything — reframes 'mine' from possession of things to possession of one's own identity. The title card 마인 appearing here is the show explicitly cashing in its thematic cheque.