It is a good thing Naomi has switched to Chemist. Her Treasure Hunter skill will draw her toward the chest at the very center of the square. Should she decide to investigate, she will find a Temple Key.

Should they get bold enough to open the other chests, however, they will find that the four chests along the corners contain mimics. The top middle, bottom middle, and left and right middles will contain the following items.

Top row, middle chest: Turbo Ether
Bottom row, middle chest: Molotov
Left column, middle chest: Antarctic Wind
Right column, middle chest: X-Potion