Is it possible his father is a vampire too? Or even a dragon? (๑•ㅂ•)و✧

No, the fact that he puts that much curse on him is wild enough. The identity of his father might be more than the cult thing...

I like the mystery of it I'm looking forward to finding out why he put a curse on MC! I'm really hoping it's something big! Because I've been hit by a few stories where the mystery was so anticlimactic and the author just want to end the story as quickly as possible so they just kinda skim through it after making it seem like such a big mystery and making the readers curious.