Jung Koo Won

Jung Koo Won is a demon who came into this world to protect a girl! The thing is, that girl is me, Camila. He has a tattoo of a cross. He has to save a girl he has to find to be her bodyguard. If, while he's saving the girl, the tattoo disappears from his hand and is applied to her, then it's that girl he has to protect. But as time passes, he starts to get jealous and fall in love with her, and he can't be with her because if he is, she'll die. That's why he has to be tough and mean to her, but at the same time protective, and he can't hug her. He has powers, and the tattoo returns to him after a few days.