The Tree Spirit's Bride

In the year a tree spirit maiden was born, she was to become the betrothed of a prince of the royal family born near that same year. And for the seventeen years until the tree spirit maiden disappeared, they were to be raised cherishing and respecting each other. If this were done, the tree spirit maiden would protect the nation and promise its prosperity. In a certain royal family where this custom continued, the third prince broke this rule, took a mistress, called the sacred maiden born from the great tree a monster, and drove her from the country. ...This is the story of a girl summoned by him after he became king, and other tales.