Donghae and Aiden are identical twins . They were almost looked alike but the only things that they don't look alike is thier behavior and thier hair colour. One Day , Thier father ( The king of vampire world)  asked them to go down to the earth to find a slave for themself since they're already 20 y.o . When the first time they landed on earth they saw a cute blonde boy walking around with a brown little dog while holding  strawberry ice-cream. With