Hi there~~ This is JIRO! JIRO Letter has already reached its 4th issue. The star of our April 2026 edition is Gongju-City in Chungcheongnam-do! From stories about Gongju-City to JIRO’s favorite local eats and handy travel tips, come take a look right now~~ Gongju-City , once Ungjin—the second capital of the Baekje Kingdom ! After King Munju moved the capital to Ungjin in 475, it remained the capital of Baekje for 63 years, until King Seong relocated it to Sabi in 538. Gongsanseong Fortress -The royal palace of the Baekje Ungjin period (475–538) Gongsanseong Fortress wraps around two rugged peaks—one to the east at 110 meters above sea level and another to the west at 85 meters—giving the area a naturally steep and defensive terrain. With the Geumgang River flowing to the north and the city of Gongju-City stretching out to the south, it stands as a strategic hub! Stories of Gongsanseong Fortress Through History When the Silla–Tang allied forces attacked Sabi, King Uija fled h...