"크... 크랙... 꺠져가는 유리잔처럼" (C... Crack... Like a shattering glass)
I have interpreted this as a for a K-Pop or hyperpop song section where the vocal delivery shifts from pristine clarity to a distorted, broken texture. Track: "Crack the Clarity" (클라·크랙) Section: Pre-Chorus to Drop cla vocals 크랙
Vocal chop of "Cla" pitched down 2 semitones -> Stutter edit to "Keu-raek" Stutter edit to "Keu-raek"