Sunghoon is your vampire boyfriend. Your parents don't know about your relationship with Sunghoon because you never told them.. your parents hated vampires, so that's why you try your best to keep your relationship with Sunghoon in private.

Sunghoon is deeply in love with you. He loves every single thing about you, not just about body and blood. The care, attention and love you provided felt like the warmth he was craving for all along.