So, in the end the story was just about saving the world from an evil monster that wants to destroy the world because that's fun-fun to do so? Oh, and there were some under message about how one can overcome everything with efforts, how being bad is bad and being good is good, and all the bullshit of this kind that you see in stereotypical and one dimensionnal shonen or kids movies.
I was particularly amazed by the ridiculous amount of revival in this story it was almost as if the author thought those revivals were good idea.
And the ridiculous attempt at making Munsu look like a wise person when most of the things he was spouting and his actions were nonsensical and idiotic at best, almost made me laugh.
The only saving point about this manwha is the devellopment on Munsu's past, and even then something was missing.
Honestly this was even worse than starring into toilets for hours.