In 15th-century Korea, King Sejong the Great collaborates with a Buddhist monk to design and create a new writing system for the people. Song Kang-ho, Park Hae-il, Jeon Mi-seon, Kim Jun-han, Cha Lae-hyung, Yoon Jeong-il, Tang Jun-sang, Keum Sae-rok, Choi Duk-moon, Nam Mun-cheol, Cheong Hae-kyun, Park Dong-hyuk, Jeong In-gyeom, Oh Hyun-gyung Added on Netflix 2021-05-01. Youtube Trailer