Responses
Yes! Actually I believe it happened in episode 40-48 if I’m not wrong but short summary, his mom was abused by the dad and then the mom kills herself resulting in the dad claiming he’s going to change but then he abuses Wonguk’s sister (forgot her name) and then Wonguk gets upset and ends up killing him which sentences to prison, the story is quite sad honestly I would recommend reading it :)
Did one of the chapters tell us about why Wanguk was sentenced to prison? It’s been so long I- ┗( T﹏T )┛