We don't move on from history. We learn from it, we remember it, we should felt humbled and humility from it. What happened, happened but since it doesn't happen to us, it's not within our rights to forgive it. If people involved doesn't want to forgive it, then they don't need to forgive it until they want to.
Tbh a large part of korean still feel the effect of japan colonizing korea, like the movement of the comfort women that's currently one of the hot topic in korea, to help them move on from that horrid past and lead a better life now. It's understandable.
I hope they understand its not defamation since japan really did all of this atrocities back then and even until now they haven't even deign to apologize.
The ninja dude literally stripped MC of his nationality and pride and you guys go “omg boohoo Japanese people defamation omgzzzz” as if there weren’t people who’s actually treated Koreans that way before. I agree we need to move on from history but there are still people who’s alive now after suffering in the hands of Japan. It’s understandable some portion of Koreans still feel angry and upset