Retail outlets and hotels in Seoul have seen sales soaring off the charts due to tourists and fans visiting the Korean capital for the comeback concert of K-pop phenomenon BTS on Saturday. Sales of BTS merchandise and other items at roadside shops around Gwanghwamun Square jumped by hundreds of percent from the previous week. The concert, however, did not appear to benefit every corner of the retail sector. Restaurant and shop owners in the tourist hotspot of Myeong-dong, some 20 minutes on foot away from Gwanghwamun Square, showed mixed responses to the highly anticipated K-pop event, as the massive crowd appeared to have diverted other visitors away, resulting in lower sales than usual Saturdays. Convenience stores were among the biggest beneficiaries of BTS’ comeback. The country’s four major brands all saw notable increases in sales on Saturday and throughout last week. GS Retail said Sunday its five GS25 convenience stores in the Gwanghwamun area saw their sales on Saturday rise 233 percent and visitors' volume 181 percent from a week ago on average. The highest week-on-week sal