Kim Seong-hwanKim Seong-hwan.

Kim Seong-hwan (8 October 1932 to 9 September 2019) was a South Korean artist and cartoonist, notable for having created and perpetuated the longest-running comic strip in Korea. Kim is also known by his pen name, which is Gobau ("strong rock"). The pseudonym dates from the summer of 1950 when he was trying to avoid getting into trouble with North Korea troops in Seoul.