All that remains of this 2d MMORPG are a few short gameplay videos and screenshots. The game was released on June 28, 2008 but was officially shut down on April 1, 2009.
Although I never played this MMO this upload from the game's soundtrack has been my go to relaxation music. It's oddly nostalgic even though I never played this, I wish there was a "revival" fan project for Pi Story like some other defunct mmos.
Pieces of the game's soundtrack are scattered online, though not on the internet archive at all. I also can't find confirmation on who the composers were for the game's soundtrack.
This video from MMOhut uses music from Final Fantasy XII for some odd reason. (Rabanastre specifically) Though near the end of the video you can hear the a snippet of the game's actual soundtrack.: