12 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.
사주 (saju) is a traditional Korean fortune-telling system based on a person's birth year, month, day, and hour — literally the 'four pillars.' It is still widely consulted today for everything from career decisions to marriage compatibility. The girl is writing hers down as part of the wish ritual the app demands.
Hyeong-uk blurts out 고멘 (gomen), the Japanese word for 'sorry,' followed immediately by the English 'sorry.' Korean teens sometimes toss in Japanese or English words for comic effect or to soften an awkward moment. It lands as dorky rather than cool, which fits his character perfectly.
갑분싸 is a compressed slang phrase short for '갑자기 분위기 싸해짐,' meaning 'the atmosphere suddenly got ice-cold.' Korean teenagers use it constantly to call out whoever just killed the vibe in a group. Na-ri is telling Hyeong-uk to stop being a walking mood-destroyer.
기리고야 is the name of the mysterious app Hyeong-uk is showing off. The name blends the Korean verb 기리다 (to wish or pray for something) with the Japanese suffix -ya, giving it an old-fashioned, almost mystical ring. It is not a real app — it is the supernatural hook at the centre of the story.
사주팔자 (saju-palja) is the full name of the birth-chart system — the 'eight characters' derived from those four pillars. Having someone write their saju before making a wish is a deliberate nod to real Korean shamanic and fortune-telling rituals, where accurate birth data is essential before any spiritual request is made.
생파 is teen shorthand for 생일 파티 (birthday party). Na-ri dismisses the word as childish, reflecting a very real Korean teenage anxiety about appearing immature — once you hit high school, openly caring about birthday celebrations can feel embarrassing among peers who want to seem grown-up.
입스 is a direct borrowing of the English sports term 'yips' — the sudden, anxiety-driven loss of a skill an athlete has performed thousands of times. The coach is worried that Gun-u's foul at last year's competition has lodged itself psychologically, and that the longer it goes untreated, the harder it becomes to shake. It is taken seriously in Korean sports culture as a genuine condition.
상비군 literally means 'standing army,' but in Korean sports it refers to the national reserve squad — the pool of athletes kept ready to be called up to full 국가대표 (national representative) status. Getting a '상비군 콜' is a huge deal for a young athlete: it means the national federation is watching you and considers you next in line.
국가대표 (gukga daepyo) means national representative and is the official term for an athlete who competes for South Korea. In Korean society, making the 국가대표 carries enormous prestige — it is not just a sporting achievement but a point of family and community pride. Se-a's excitement is completely proportionate to what it actually means.
The older sibling is impressed that the app managed to get past QR-code verification — a step common in Korean apps tied to real-identity systems (which require a phone number and often a national ID). That a mysterious wish app cleared this hurdle makes it feel strangely legitimate, and raises the question of who actually built it.
Korean high schools typically begin the day with 조회 (johoe), a brief homeroom roll-call where the teacher checks attendance before first period. Unexplained absences are flagged immediately, because Korean schools track students closely — missing 조회 without notice is treated as a serious disciplinary matter, not just tardiness.
Hyeong-uk has armed himself with a knife and the scene escalates into a full crisis. In South Korea, the mental-health support line is 자살예방상담전화 1393, available 24 hours. If this scene is distressing, please reach out — internationally, findahelpline.com lists resources by country.