Welcome to Green Bays, a cluster of mysterious islands that sparkle like jewels in the shimmering ocean! But travelers beware! The islands are not as peaceful as they seem, for they teem with a multitude of monsters both great and small.

Green Bays is also home to the famous Monster Scout Challenge. This renowned contest, held once every few years, determines who will be crowned the world's greatest scout. The challenge is organized by the Monster Scout Organization, whose headquarters are located on Domus Isle, which lies at the center of the archipelago.

DQM 4 Hero Now a new challenge is about to begin and the crème de la crème of the scout world are converging on the islands.

It is time for you to begin your quest to become the greatest monster scout in Green Bays, and in history.