"When it comes to finding a groom through a martial arts contest, the princess of Saint Duke has everything to do with it. First! Saint Duke Starfield and Tenshou Starfield are enemies! Around ten years ago, Tenshou Starfield moved all their armies to attack us! Did you know that the intergalactic war is still going on?! During our most difficult time, the king had to summon the princess back from Earth and she was married off to the Prince of Royal Azure Starfield! However, Royal Azure Starfield had made some ridiculous demands! They wanted us to give them five planets as dowry!"