Dr. Ko has appeared in 4 comics from Haksan since 2016. The most recent cataloged appearance dates to 2017. Most cataloged appearances come from Chiro: The Star Project.
Netcomics
12 issues
Chiro: The Star Project (2015)
Aug 23, 2017
Mar 01, 2017
Dec 28, 2016
Jun 29, 2016
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