Im Chang studied art in Japan. He returned to Korea after the liberation, where he became a teacher at several schools. He moved to Seoul in 1955, where he began illustrating and drawing comics for Sintaeyang magazine. He started the daily strip about the robot 'Machistae' in 1964 for the juvenile Sonyeon Hanguk Ilbo daily. From then on, Im Chang devoted himself to creating junvenile comics meant to be distributed through loan-offices. His most famous creation became 'Taengi', of which Im Chang produced several books. From the late 1960s, Im Chang was involved in a long battle against the monopoly of the Culture Union.