TWICE's Nayeon is striking a pose at the photowall to celebrate the opening of the Fitflop Seongsu pop-up store '0 STEP', held on the 10th in Seongsu-dong, Seongdong-gu, Seoul. '0 STEP' is an experiential retail space that stylishly presents a new lifestyle based on comfortable movement and everyday wellness. On this day, TWICE's Nayeon and Day6's Young K attended the event and graced the occasion with their presence. Photo = Reporter Choi Jae-hyuk. #TWICE #Nayeon #Day6 #YoungK #fitflop #SeongsuDongPopUpStore.