In the near future on a remote island called "The Lost Grounds" is a new kind of people, the Alter User`y, able to manipulate matter and convert it into something else. On this island citizens are those who are born within the walled city,while the rest are semi-legal existence in the barren lands. Trying to keep the peace police force HOLD along with a detachment of elite alter user`ov HOLY capture dangerous native alter user`ov and offer them a choice... join HOLY or be imprisoned. After,as a young native alter user Kazuma meets with HOLY, a question arises. HOLY really interested in all that was good, or they have some other motive?