NCT 127 released its trailer video ahead of their October 6 comeback.

On September 14, the trailer video 'Mystery in Seoul' featuring Yuta, Doyoung, and Mark was released on NCT 127's social media pages. The video has received praise for the transformations of the members and the interesting storyline.

In the video, Yuta showed his charisma as the leader of the group of riders. Doyoung is a mysterious and solitary person who can communicate with fish, and Mark is a witty and jewelry store owner hanging out with aging hipsters.

The trailer announces the start of NCT 127's 'Fact Check' album promotion. As the keyword of the album suggests, NCT 127 is depicted as a "mysterious" entity at their Seoul base.

On October 6th, NCT 127 will hold a showcase 'A Night of Festival' at the old Sampyo ready-mix concrete site near Seoul Forest in Seoul. 

<Translated by=Jiwon Kim(Dispatch)>