In the Kingdom of Blue, the prince, Kaito, heir of the Shion's royal inheritance. Therefore he must marry the princess of the Green Kingdom, Miku, who's father and mother have died in a war and defeat. Though they're army is strong, that is why they must form an alliance. Though Kaito's maid, Meiko, who's family has been very poor and lived on the streets, has been having a minor crush on Kaito himself. Though her heart aches that he will be marrying the princess. How do you think this will end?