Famed Korean author Jo Jung-rae thinks that any Korean who studied in Japan should be prosecuted:

Novelist Jo Jung-rae during a news conference to commemorate the 50th anniversary of his literary debut at the Press Center in central Seoul on Monday / Yonhap

“People who studied in Japan are doomed to become pro-Japanese. They become traitors. Some call them ‘homegrown Japanese pirates’…,” he said during a news conference to commemorate the 50th anniversary of his literary debut at the Press Center in central Seoul. 

“I know there is a campaign going on and it aims to purge Koreans who are sympathetic about Japan regarding its past evil acts and distortion of history. People like them must be punished in accordance to law. I’m willing to actively participate in the campaign.”

His remarks created a stir. 

Critic Chin Jung-kwon said Jo’s remarks reflect “insanity” and “outdated nationalism.” Chin wrote on social media that if all Koreans who spent some years studying in Japan are Japan sympathizers, then President Moon Jae-in’s daughter must be pro-Japanese as she studied at Tokyo’s Kokushikan University. 

Jo is a respected novelist having authored many best-selling books. His award-winning historical fiction work “The Taebaek Mountains” is considered the best novel of the 1980s.

Korea Times

You can read more at the link, but Jo wants to put people in jail who studied in Japan because a group of authors wrote a book based on facts about the Japanese colonial period that dispute much of what Jo has written in his historical fiction books. So instead of disputing the facts he rather have people jailed.