NCT 127 has revealed new teaser images and clips for Taeyong, Johnny, and Haechan.

In these sets of teasers titled 'Mystery in Seoul,' each member embodies a unique charm in different spaces with special color tones and aesthetics. Taeyong works at a currency exchange booth, Johnny visits an antique hair salon run by elderly women, and Haechan codes in his digital nook. 

These songs and visuals are raising fans' expectations for NCT 127's upcoming 5th album, 'Fact Check,' set for release on October 6 at 1 PM KST.