This is completely made for kids and has steered way off than the original.
1st and foremost: There is no emotions in the acting. Like the girl's screaming in the first episode; it looks like she is only shouting for no reason with no fear at all. There are many other parts where it feels forced. I really have no idea how in the world did others feel like such acting was top notch. Just crazy fans I guess.
In the original, Won Mi Ho (female lead) is always on tenterhooks when facing Van, but here she is too dominant and Van is too awkward. But for some reason, she talks about him as he is a demon just to forcefully match with the comic.
The actors don't fit their roles like some reviews have mentioned. The main character should have been scary and look like a killer, but the actor they hired looks like some kind, awkward uncle next door.
Lust demons should be about lust and sexual powers, but no such things here.
They should have gone along with the original comic. They completely toned down the plot to make it more fit for younger audience.