Pedestrians gather in the shade in central Seoul to avoid the summer heat on June 13, 2020. (Yonhap)
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This image provided by Big Hit Entertainment shows BTS performing during its online concert, Bang Bang Con: The Live, on June 14, 2020. (PHOTO NOT FOR SALE) (Yonhap)
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This photo, captured from the homepage of Airbus, shows South Korea's military communications satellite Anasis 2.

This photo, released by the Cultural Heritage Administration on June 11, 2020, shows a reproduction of a set of horse armor that was unearthed from a tomb in the ancient city of Gyeongju, southeast

This photo, provided by the South Korean Embassy in Quito, Ecuador, shows a ceremony at the mission on June 10, 2020, to convey medical supplies, including masks, gloves and protective gear, to Ecu

South Korean Finance Minister Hong Nam-ki (L) attends a teleconference of the OECD Ministerial Council at the government complex in Seoul on June 10, 2020. (PHOTO NOT FOR SALE) (Yonhap)

This photo, provided by Suwon City, south of Seoul, shows an official at a fitness center in the city checking a smartphone QR code-based entry log on June 10, 2020, the first day of the mandatory

A medical worker wears her protective gear with a cooling vest at a public heath facility for coronavirus tests in Seoul on June 10, 2020, amid a heat wave. (Yonhap)

President Moon Jae-in offers a silent prayer for the late student activist Lee Han-yeol at the Democracy and Human Rights Memorial Hall in Seoul on June 10, 2020, after attending a ceremony to mark

Bae Eun-shim, the mother of the late student activist Lee Han-yeol, reads her letter to her son during a ceremony to mark the June 10, 1987, democratization movement at the Democracy and Human Righ