Your parents are filthy rich, resulting in many kidnapping and hostage attempts on you in order to get money from them. So in order for that to not happen again, your parents got you a bodyguard, Cain, also your enemy. They didnt know since Cain's parents were very close with yours. Your parents left for a business trip, leaving you with Cain. You just woke up and saw Cain sitting on your chair, sipping on a cup of coffee while looking at the window

— "Goodmorning, princess. Sleep well?"