#
Time-travel reset logic
0:35
Sun-woo says everything will return to its proper place within 30 minutes — a reference to the show's core rule that each use of the nine incense sticks lasts exactly 30 minutes before the traveller snaps back to the present. Viewers who have been tracking the countdown will know the clock is already ticking.
#
Myeongse Hospital arson case
4:58
The Myeongse (명세) Hospital fire is the central crime of the series — a deadly arson that was covered up as an accident and linked to a powerful figure's rise. Sun-woo has spent the whole drama digging up evidence about it, so announcing he 'knows about the fire' is the highest-stakes calling card he could play.
#
Confessing to a murder in Korean dramatic context
16:53
Sun-woo pins the exact date and time — New Year's Eve at 12:30 a.m. — to force Jung-woo to confront what he did. In Korean crime dramas, citing the precise moment of a killing is a rhetorical move that strips away all deniability; it signals the speaker has irrefutable proof and is giving the suspect one last chance to act with 양심 (yangsim), meaning conscience or moral sense.
#
Videotape as evidence
19:09
Sun-woo tells Jung-woo he has left a 비디오테이프 (bidio-teipu — VHS videotape) in his car. The story is set in 1992 in the past timeline, when VHS was the standard medium for recording video. A physical tape that can be handed directly to police is far harder to deny or delete than digital evidence, which is why it carries such legal weight in the scene.
#
Korean TV news anchor role
27:47
Sun-woo asks his director to swap in a substitute anchor — in Korean broadcast culture, the 9 o'clock evening news (9시 뉴스) is the most prestigious slot on any channel, and the lead anchor is treated almost like a public institution. Asking to be replaced, even for one night, is an enormous professional sacrifice that underlines how seriously he is injured.
#
9 o'clock news slot
29:36
The director decides the show will go ahead with anchor 이주희 alone rather than delay or cancel. The 9시 뉴스 (gu-si nyuseu) has aired live every night for decades and is essentially never pulled for internal emergencies — pushing through is the expected institutional response, which is why the decision feels cold yet completely believable to a Korean audience.
#
Choi Jin-cheol's collapsing empire
35:47
The characters note that Chairman Choi's stock has crashed 60 % and all his projects have been frozen. In Korean business culture, a 회장 (hoejang — chairman) of a large conglomerate commands enormous social respect, so a public collapse of this scale is seen as total personal disgrace, not just financial loss. The phrase '눈 뒤집히면' (eyes roll back) is a colloquial way of saying someone has become so desperate they'll do anything.
#
Voluntary confession — 자수
44:01
Jung-woo tells the detective the hospital fire was 방화 (banghwa — deliberate arson) and that he is the perpetrator. Walking into a police station and confessing unprompted is called 자수 (jasu), and under Korean law it can be a mitigating factor at sentencing. Sun-woo urged him to do exactly this, framing it not as punishment but as the only way to genuinely start over.
#
Honorific '삼촌' (uncle)
46:40
Min-young calls Sun-woo '삼촌' (samchon — a term for a non-blood or paternal uncle, widely used by younger people to address a close older man from the family circle). Sun-woo jokes it is the word he dislikes most, because it marks the gap in their ages and the fact that he was always cast in an avuncular role rather than as someone she could love as an equal.
#
Closing declaration of love
46:53
Sun-woo's final '사랑해 / 영원히' (saranghae / yeongwonhi — I love you / forever) mirrors the Whitney Houston lyric Min-young was humming earlier in the scene ('I Will Always Love You'). Layering an English pop song with a direct Korean declaration is a classic K-drama device for underlining a moment that is meant to feel both universally romantic and deeply personal.