A Korean Odyssey[3] (Hangul: 화유기; RR: Hwayugi) is a South Korean television series starring Lee Seung-gi, Cha Seung-won, Oh Yeon-seo, Lee Hong-gi and Jang Gwang. Written by the Hong sisters, the drama is a modern spin-off of the Chinese classic novel Journey to the West. It aired on tvN starting December 23, 2017 every Saturday and Sunday at 21:00 (KST).