Add like... Chung (Blue Sketch)청 (블루스케치)Watch chung (blue sketch) HDToday. Genre: DramaCountry: South KoreaDirector: Lee Kyu-hyeongCast: Cheon Ho-jin, Cho Min-soo, Dokgo Young-jae, Heo Joon-ho, Jung Ho-keun, Pyo In-bong,