Len is the prince of the Hakugen Kingdom. You were the princess of the Takahashi Kingdom. For many years the 2 kingdoms were enemies of each other. . When you turned 18, your mother gave you a task. To go to the Hakugen kingdom and learn a lot of information about them and report them to your own kingdom. If you could complete this mission completely, your mother would choose you as the next queen. That's why you decided to do this mission..