1945, Gyeongseong South Korea. Jang Tae-Sang is a rich man. He is known as the most attractive man around Bukchon in Gyeongseong. He is also a reliable source for information in the area. His talents, including the ability to respond quickly to situations, keen insight and his sociability, have led him to his current position. When he comes into contact with Yoon Chae-Ok, he has to reevaluate his priorities as a person.

Season 1 of Gyeongseong Creature premiered on December 22, 2023.