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 Islamic tradition, Iblis (이블리스) is the name for the devil — a being who refused God's command to bow before the first human (Adam) and was cast out. The show draws directly on this mythology, making Izrael and Iblis ancient rivals from the very beginning of creation. The name 'Iblis' comes from the Arabic root meaning 'despair.'
고독사 (godoksa) literally means 'lonely death' — dying alone with no one nearby and often not being discovered for days or weeks. It is a recognized social crisis in South Korea, especially among elderly people who live alone. Local welfare workers called '코디' (coordinators) do routine welfare check visits, which is why one was at the door.
Izrael jokes that he is still on Interpol's wanted list because he kept showing up wherever people died. Interpol (인터폴) is the international police cooperation agency; being 'on Interpol' (수배 떠 있다) means there is an active international arrest notice for you. It is a darkly comic way of showing how long he has been walking among humans.
'니가 가라, 하와이' ('You go to Hawaii') is one of South Korea's most famous comedy catchphrases, from the 2001 film 'Conduct Zero' (두사부일체). A character says it dismissively when told to go to Hawaii. It became a national meme used whenever someone mentions Hawaii, which is why the villager blurts it out here — it is almost a reflex.
'성님' is a dialect version of '형님' (older brother/senior), used widely in rural and older Korean communities as a respectful address for an elder woman or man in the village — not necessarily a blood relative. Mi-ju's innocent guess that everyone calls each other that because she saw it in dramas is spot-on: Korean countryside dramas do use this honorific constantly.
Irem describes being born from the breath blown into 물담배 (mul-dambae) smoke — a water pipe (hookah), which has deep roots in Middle Eastern and Central Asian culture and was historically common in the regions where Izrael, an angel of Islamic tradition, would have existed. It is a poetic detail tying Irem's supernatural origin to the same cultural world as Iblis and Izrael.
The bank staff shout both '건배' (geonbae, the native Korean toast, literally 'empty your cup') and '간빠이' — a direct borrowing from the Japanese '乾杯' (kanpai). Using both in one breath is common in Korean office drinking culture; Japanese drinking vocabulary slipped into Korean during the colonial era and never fully left, though younger generations increasingly prefer the Korean form.
'GAME' is a song by (G)I-DLE members Soyeon (소연) and Yuqi (우기), released as a unit track. Its punchy, competitive energy fits the scene perfectly — Mi-ju has just shown up at a boxing gym looking for self-defense skills, and the song's title mirrors the challenge she is about to take on.
Ga-young mutters '전세 사기도 아니고' — 'this isn't even a jeonse scam.' Jeonse (전세) is a uniquely Korean rental system where a tenant pays a large lump-sum deposit instead of monthly rent, and gets it back at the end of the lease. Fraudulent landlords who pocket these deposits became a massive national scandal around 2022–2024, so the phrase landed as a very current, bitter joke.
The flashback is set around 1041 CE and the girl is identified as 고려 (Goryeo) — the Korean dynasty (918–1392) that gave the outside world the name 'Korea.' Goryeo traded along overland and maritime Silk Road routes, and Korean people did end up in Central Asian and Middle Eastern caravans, sometimes as enslaved persons. The multilingual chaos of Arabic, Mongolian, and Chinese reflects that actual historical crossroads.
Izrael lays out the brutal arithmetic of Iblis's wish-granting: the girl asked for her brother's long life and for other Goryeo children to be safe, but hundreds died as collateral. This echoes a classic concept in Korean folklore and shamanic belief (무속) that blessings require sacrifice — 피의 제물, a blood offering. Iblis did not technically break the rules; he simply interpreted each wish in the most destructive way possible.
Iblis snarls that humans were 'shaped on a Friday' as a slur. In Islamic theology, Adam was created on a Friday — the day also considered sacred in Islam (the day of congregational prayer, 주마). Iblis using it as an insult ('a lump of clay made on Friday') shows his contempt for humanity goes all the way back to the original moment of creation that started his rebellion.
The episode closes with 'LOVER' by Ha Hyunsang (하현상), a Korean singer-songwriter known for his rich, yearning vocal style. His music has featured in several Korean dramas. The lyrics about waiting across countless days and nights for one destined person (인연) mirror Iblis's impossible, millennium-long entanglement with Ga-young's past self.