～Story～ Sirens echo throughout the city once more. On every street corner, the murmur of voices. The Familiars, a group of phantom thieves, have struck again. And they're all anyone can talk about. Their identities and purpose are mysteries. But they always get what they're after. So if you're on their list, watch out... Because whatever's yours will soon be theirs. Just where will they strike next...? ～Rules～ Your goal is to find the diamonds hidden in each stage and escape. Use the various objects in a stage to locate the specified number of diamonds, then get out of there!