Treasure is something we value because we give it value. If we didn’t value it, it wouldn’t be something to covet or desire. So when the mysterious Nanana Ryuugajou has an entire collection of treasures for her island friends to find, of course they’re going to take them by any means necessary! But when it comes to treasure, there is only one for the many who want it. And thus, a community of thieves is born! And when it comes to thieves, who can you really trust?