NiziU(니쥬) 'Lullaby' Track Video

In the Korean comments

One top comment singles out the song’s entrance and reads, in translation, “Rima, that opening is a work of art.” Another commenter recalls watching “Nizi Project” and says they are grateful that NiziU, after becoming successful in Japan, occasionally releases albums in Korea.

What the words mean

“도입부 예술이다” (doipbu yesurida, “the opening is art”) is not a literal classification. Here, it is casual, emphatic praise meaning that the opening is exceptionally good.