This photo, provided by the National Folk Museum of Korea, shows the process of making "makgeolli," a South Korean traditional grain-based alcoholic drink.

Participants sing the South Korean national anthem in unison at a square of the Kim Koo Museum and Library in Seoul on April 11, 2021, during a national ceremony to mark the 102nd anniversary of th

This photo taken April 9, 2021, shows South Korea's first prototype of the next-generation KF-X fighter, officially dubbed KF-21 Boramae, being revealed at the Korea Aerospace Industries Co.

This photo, provided by Seoul's foreign ministry, shows the MT Hankuk Chemi, a South Korean oil tanker, departing the Iranian port of Rajai on April 9, 2021 (Korean time), as it was released along

An election official shows a voting stamp with which voters mark their ballots while installing a polling station in Seoul on April 6, 2021, the eve of the Seoul mayoral by-election. (Yonhap)

People who were forced to leave or flee North Korea hold a traditional rite at a public cemetery in the southwestern city of Gwangju on April 5, 2021, to pay tribute to their ancestors, marking the

Fans take in a Korea Baseball Organization regular season game between the home team Doosan Bears and the Kia Tigers at Jamsil Baseball Stadium in Seoul on April 4, 2021. (Yonhap)
(END)

Kids plant saplings in a field in the southeastern city of Daegu on April 2, 2021, on the occasion of Arbor Day that will come on April 5. (Yonhap)
(END)

A voter wearing sanitary gloves casts a ballot at a polling station in Seoul on the first day of two-day early voting for the April 7 Seoul mayoral by-election on April 2, 2021. (Yonhap)

A visitor enjoys the 13th Gwangju Biennale in Gwangju, 330 kilometers south of Seoul, on April 1, 2021, after it was opened to the public.