Ko, Huidong(pen name: Chungok, 1886-1965) who is the first Western-style painter in Korea returned home from Japan after graduating from the Department of Western-style painting at Tokyo School of Fine Arts(東京美術学校) in 1915. He worked as an art teacher for the Jungang High School, and participated in establishment of Society of Painters and Calligraphers(西畵協會).
Ko accepted plein-air painting in Japan and produced the works in this style, and used sensuous color of impressionism. After the 1930s, he turned to Eastern-style painting.
Self-portrait is one of his three self-portraits which exist. In the painting, wearing unbuttoned shirt, KO is fanning himself, and taking a rest in his room. Depicting such casual pose and daily life in portrait was unconventional at that time. The complementary color contrast between warm color and cold color, and the light effects on the skin reveal the impact of Impressionism. This work is the earliest oil painting in Korean history, and designated as Registered Cultural Heritage #487.