Plus Plum 2 Again Portable (Japan) - PSP - Puzzle

A magical tool from an earlier era has been discovered in a certain town. It is said that it has the power to grant strong wishes, but no one knows how to use it. So a huge battle is launched to obtain it. The mayor suddenly proposed a tournament, and whoever wins will be able to use the magical tool freely for one month, BR and keep all the effects they can extract during that time for themselves. The rumor spreads not only around town, but all over the country. Who will the winner be? And what is the power hidden in the magical tool?