Adult PC Game: Triangle - Princess Project (uncen-eng) Archive

One day, in the peaceful kingdom of Ailuref, the king injures his back. Needing time to rest and get magical treatment, he orders his daughter, Princess Meeyu, to take care of his royal duties. However, Princess Meeyu is known as the "Useless Princess", and her reputation is at rock-bottom. Determined to change this, Meeyu resolves herself to work to raise her reputation amongst her subjects, and successfully fulfill her duties as princess.