Watch on Soap2day. It relates a time-slip story which takes Jung Yak Yong, known as Dasan, one of the greatest thinkers in the later Joseon period, from the past in 1818 to the present in 2022, as he becomes elected as the 20th president of the Republic of Korea. Jung Yak Yong was a Korean agronomist, philosopher, and poet. During his time, he wrote highly influential books about philosophy, science and theories of government and held significant administrative positions.