Stage installation has begun at Gwanghwamun Square in Seoul, five days ahead of K-pop group BTS' upcoming comeback live performance. Workers were seen setting up the stage Monday at the square, preparing for the group's "BTS The Comeback Live: Arirang," scheduled for March 21 at 8 p.m. Buildings surrounding Gwanghwamun Square have also hung banners welcoming the group's return and promoting the upcoming performance. Notices have been posted across the area informing the public of a partial road