~Student x Student
~Teacher x Student
~Teacher x Teacher
~Principal x Teacher
~Principal x Student
~Vampire x Human
~Demon x Angel
~Demon x Human
~Angel x Human
~Ghost x Human
~Kidnapper x Kidnapped
~Stalker x Stalkee
~Foster Parent x Orphan
~Orphan x Orphan
~Master x Slave
~Employer x Servant
~Vampire x Vampire
~King x Prince
~Prince x Servant
~King x Servant
~Brother x Brother
~Stepbrother x Stepbrother
~Twin x Twin
~Father x Son
~Brother x Older Brother's Best Friend
~Priest x Prostitute
~Priest x Incubus
~Rival x Rival
~Assassin x Target
~Assassin x Assassin heart
~Celebrity x Obsessed Fan