Take on the role of a boy with a crush on Dejiko who, along with Dejiko, Puchiko, and Rabi-en-Rose, gets sucked through a dimensional vortex into a fantasy world. The player finds himself alone with Dejiko in a forest, and she's lost her memory. In this game, players are given a very different view of Dejiko, as the amnesia makes her innocent and shy.

The game takes place in a world of elves, monsters, and wizards. In the distant past the continent of Ragnoa had been united by a legendary king. After his death a series of wars broke out, resulting in creation of six smaller kingdoms. Shortly after that a demon army appears and attacks one kingdom after the other overrunning most of Ragnoa. In this dire situation various kingdoms' queens gather in the kingdom of Raudhia which has been least hit by the demons' attacks. Princess Concerto's protagonist is Alfred, the youngest of Raudhia's three princes. The polite young man is a pacifist and tends to be indecisive. However, in the face of demons' attack, Alfred eventually decides to throw himself into the epic battle against the forces of evil. In his struggle he will receive support from the princesses of all six kingdoms. [Edited from [url=http://psxdatacenter.com/psx2/games2/SLPM-66285.html]psxdatacenter[/url]]