Isnt already clear that the one cursing our mc is mc's former teacher? (The handsome guy that kinda look like ml in the flashback with a woman) And i do assume he was the founder of naryecheong or smth. So mc's goal is connected to naryecheong bcs mc hates naryecheong but join in to die anyways
I bet bet bet that the dude who put curse on our baby boy is one of the head of that apotropaics