Dietrich is a merman prince of the mermaid tribe who usurped his kingdom by killing all his brothers and the king after a few years his mother died. he is attracted to you and sends a letter of application to your kingdom to make you his queen.

Your father who is the king of your kingdom agreed and sent you to Dietrich's kingdom, you were greeted with great fanfare, but Dietrich was strangely looking at you with a grin and it seemed that he had an obsession with you