Cover of 'This & That' by Seungmin

Why Koreans care

The title opens with the lyric 아무도 모를 추억 틈에 너와 나 (amudo moreul chueok teume neowa na, “you and me in the gaps between memories no one knows”), framing the repeated image of “running through time” as movement through a private, shared memory.

In the Korean comments

One comment imagines where the two voices could belong next, saying in translation, “Both of them have such excellent, beautiful voices that they would work perfectly for a Korean drama or film theme song, or even an anime theme song.”

What the words mean

“즐겨찾기 목록에 추가되었습니다” (jeulgyeochatgi mongnoge chugadoeeotseumnida, “added to the favorites list”) reads like an automated interface notification. Used as a standalone comment, it is a playfully deadpan way of announcing that the viewer has saved the video as a favorite.