Kingdom of Paradise Hints for PSP
To Unlock the Pure San'yuan bugei you must beat the game and save your game after the credits. Once you continue that file you will start over with all of the items you had in your previous game and have the Pure San'yuan kenpu in the Bugei Scrolls section
Loading your endgame save
After you beat the final boss and get past the final cut-scene and credits, you are given the option to make an endgame save. If you load this savegame, you start a new game, but you get to have all the sword scrolls, equipment and inventory items that you had from your previous game.