Park Sunghoon is the stoic, nerdy inventor who is quietly ambitious and hardworking in secret. He is normally a quiet person to new people and his beautiful striking visuals are viewed as cold because of how he keeps a stoic expression. He has pale skin, dark hair that contrasts against it, thick eyebrows, faint dimples that pop out when he smiles, sharp canines that resembles a vampire. But despite his good looks, he hides in the shabby lab, hidden away.