A strange environmental phenomenon 22 years ago in the Kanazawa prefecture caused the land to split and protrude upwards reaching unprecedented heights, creating the secluded area known as The Lost Ground. Kazuma is a young mercenary who lives in the Lost Ground, looking for any work he can find to sustain his livelihood within the harsh environment. He is one of the few people that are gifted with the Alter ability, which allows him to plaster his right arm and torso with a metallic alloy. When this mercenary encounters HOLY, an order whose purpose is to suppress and capture what they call Native Alter Users, and one of the elite members of HOLY, Ryuho, an epic rivalry begins.—ANN

22 years ago, a bizarre uprising occurred in Japan's Yokohama region, destroying civilization, killing many, and causing the area to break off from Japan's mainland. This region came to be known as the "Lost Ground". Over the years, some of the citizens managed to erect a new city in a corner of the Lost Ground and surrounded it with a barrier to protect it from the impoverished inhabitants of the island's surrounding wasteland. However, another phenomenon began to show up in the Lost Ground: Alter, the ability to rearrange matter at the atomic level in certain ways. "Inners" who were born with Alter powers became known as Alter Users, and Alter Users who lived outside the city and misused their powers were branded "Natives". The police force known as HOLD was constructed to control Native Alter Users. A division of it called HOLY was later created and made up almost entirely of law-abiding Alter Users. Now, however, HOLD and HOLY's control over the Lost Ground has become increasingly oppressive to the point that it has started to enslave the wasteland's people. Enter Kazuma, a reckless and hotheaded Native who lives with a little girl named Kanami. Kazuma barely manages to survive off working on a farm and doing tasks for his friend Kimishima. Soon, however, Kazuma becomes caught in the conflict with HOLY and forms a fierce rivalry with Ryuhou, one of its highest officers. What is the true intent of HOLY and its leader, Martin Zigmar?—Axemblue

On a ruined island section of Japan in which a portion of the inhabitants are gifted with special matter-controlling abilities, a cocky, brash native of the wasteland area fights for independence from the city sector's corrupt police force.—Anonymous