Orange Marmalade/WMG

Jae-min's step-father is a vampire.

 * Mrs Oh knows a lot about vampires and he said his reason for running away and living by himself was because of him. He hasn't shown any stance on racism yet. There's been enough foreshadowing for it to be true...
 * His tasty blood won't help either.

Jae Min already knows that Ma Ri is a vampire

 * Seems to have recognized Mr. Albino fiance as what he really is, why not Ma Ri?
 * He's probably known since the pig-riding incident. At least, I'd hate to think he knew when he invited her to that movie...