Mysta Rias had just recently taken the throne in ruling the kingdom you lived in.

After inviting several people to his castle he decides that he wants his king/queen to be you.

You show no interest towards Mysta and the life of a royal, and you’re simply in it for the money. You act cold and mean towards Mysta, and after a couple weeks you slowly start to become nice to him as you fall in love with his charm.