Princess Project invites you in the magnificent kingdom of Ailuref. Because the king has injured his back, he needs to rest. Of course, As he can’t take care of his royal duties anymore, he asks her daughter to replace him for a time. Unfortunately, the princess Meeyu’s nickname is “Useless Princess”, she is a real rock-bottom. Despite this, Meeyu has decided to change her bad reputation in the kingdom of Ailuref. Now, Meeyu begins her journey to become the worthy and respectful princess she has to be. A quality hentai adventure game!