On the afternoon of the 16th, in preparation for the full-group comeback performance of BTS, stage installation work was in full swing around Gwanghwamun Square in Jongno-gu, Seoul. Photo by Jo Yongjun

On the afternoon of the 16th, ahead of the full-group comeback performance of BTS, stage installation work was actively underway around Gwanghwamun Square in Jongno-gu, Seoul. Photo by Jo Yongjun

A stage is being set up around Gwanghwamun Square in Jongno-gu, Seoul, ahead of the full-group comeback performance of BTS on the 16th. Photo by Jinhyung Kang

On the 16th, a road closure notice was installed at Gwanghwamun Square in Jongno-gu, Seoul, ahead of BTS's full-group comeback performance. Photo by Jinhyung Kang

On the afternoon of the 16th, ahead of the full-group comeback performance of BTS, entrance blocking facilities for pedestrian safety were installed on the above-ground ventilation structure of Gyeongbokgung Station in Jongno-gu, Seoul. Photo by Jo Yongjun

A stage is being set up around Gwanghwamun Square in Jongno-gu, Seoul, on the 16th ahead of the full-group comeback performance of BTS. Photo by Jinhyung Kang

Near Gwanghwamun Square in Seoul, a promotional video for the BTS concert scheduled for the 21st is playing on the digital billboard of the Koreana Hotel. Photo by Yonhap News