Big Hit Entertainment released the first set of concept photos for minisode 1 : Blue Hour on Sept. 28. The group teaser photo showed individual images of the five members on a computer screen.

TXT drops the first melancholic teaser of Blue Hour music video Bollywood News: Latest Bollywood News, Bollywood News Today, Bollywood Celebrity News, Breaking News, Celeb News, Celebrities News ...

As it turns out, TXT's title track is about living life in the moment. In the song, the guys take time to appreciate the "blue hour," aka, the time at 5:53 when the sun sets in October.