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.
봉순 calls her fist a '핵 주먹' (haek jumeok), literally 'nuclear fist.' It's a slang intensifier — 핵 (nuclear/nuke) gets slapped in front of nouns to mean something is extreme or off the charts, the way English speakers might say 'mega' or 'ultra.' The joke is she's hyping herself up while playing a fighting game alone at night.
봉순 sarcastically calls herself 을 (eul) and Min-hyuk 갑 (gap). These terms come from Korean contract law — Party A (갑) holds the power and Party B (을) is the subordinate. In everyday speech they've become shorthand for any lopsided power relationship, like boss versus employee. 봉순 is using it to mock how absurd it is that he even has to ask.
팀장 (the team leader detective) cites '수사반장,' a legendary Korean police procedural that aired from 1971 to 1989 — one of the longest-running dramas in Korean broadcast history. Referencing it signals that he's an old-school cop who learned detective work from television rather than the academy, which his younger colleagues find both charming and exasperating.
The neighborhood women have gone to see a 무당 (mudang), a Korean shaman who communicates with spirits and tells fortunes. A 무당 session typically involves a 굿 ritual with chanting, a fan, and bells or rattles. It's a living folk-religion tradition, and consulting one before a big decision — like investing in real estate — is not unusual in Korean daily life even today.
봉순's mother rattles off her birth date down to the exact hour (August 15, 1991, 2:30 a.m.) so the 무당 can read her 사주 (saju), literally 'four pillars.' Saju is a traditional system that maps a person's destiny from the year, month, day, and hour of birth. The mother's real goal is to find out whether her daughter and Min-hyuk are a good romantic match — a very common reason to consult a shaman or fortune teller in Korea.
Min-hyuk quietly says the spread 봉순 laid out looks just like the meals his mother used to make. A 밥상 — a full table of Korean side dishes (반찬) around a bowl of rice — carries deep emotional meaning in Korean culture; it is the primary way care and love are expressed in a family. His remark is the first genuine, unguarded thing he says to her.
The flashback shows teenage 봉순 accidentally sending the 흔들바위 (Heundeul Bawi, 'Rocking Rock') crashing down. This is a real landmark — a massive granite boulder perched on the ridge of Bukhansan National Park just north of Seoul, famous because it sways when pushed yet never falls. It's a popular tourist stop and its 'impossible to topple' reputation makes 봉순's accidental destruction of it the perfect comic catastrophe.
Teenage 국두 says he likes girls who are like 코스모스 (koseumosu), the cosmos flower — delicate, swaying, in need of protection. The cosmos is a quintessential Korean autumn flower associated with fragility and gentle femininity, often featured in romantic poems and songs. Hearing this is the moment 봉순 decides to hide her superhuman strength at all costs, because she is the opposite of a swaying cosmos.
봉순's mother is at a Buddhist temple praying for her children's university entrance exam results. This is an extremely common Korean custom: parents (and sometimes students) visit temples or churches for weeks or even all night on the eve of the 수능 (Suneung, the national college entrance exam), lighting incense and prostrating themselves in prayer. The mother's prayer is funny because her hopes for 봉기 (medical school) and 봉순 (literally any university) reveal exactly how she ranks her children.
봉기 explains that his sister always cries at 히어로물 (hieoro-mul) — superhero films like Hulk, Avengers, and Spider-Man. The joke the show is setting up (and which 봉순 herself narrates elsewhere) is that she identifies with these characters: someone with extraordinary power who has to hide it and live a constrained life. For Korean audiences 봉순's tears read as both comic and poignant.
Drunk 봉순 accidentally rips out what appears to be the DJ equipment or a structural fixture in the club, killing the music and sending everyone scattering. In Korean clubs the DJ booth is the center of the whole event, so pulling it apart is a maximally disastrous thing to do. It is also a running motif in the drama: whenever 봉순 loses emotional control, her body strength follows.
The detective confirms that the fake taxi driver used a 대포폰 (daepofon), literally 'cannon phone' — a pre-paid or illegally registered phone bought under someone else's name to avoid being traced. They are a staple of Korean crime dramas because real investigators do encounter them. The term is well-known enough in Korea that it appears in news headlines whenever fraud or organised crime is reported.
The kidnapper calls his captive his '두 번째 신부' (second bride), revealing a delusional fantasy in which he is collecting women as wives. This framing — treating abduction as courtship — echoes the classic K-thriller trope of the 'marriage obsessed' serial offender and signals to Korean viewers familiar with crime dramas that the case is more organized and more sinister than a random attack.