Since the oppression of the Black Horsemen was finally put to rest, life in the Lost Lands has continued peacefully for several decades. But now, rock devil statues have started coming to life in an abandoned old fortress. The locals are panicking. No one suspects that an ancient curse was awakened after sleeping for a thousand years. Happily, a mage named Maaron recalls Susan, the warrior who repeatedly saved the Lost Lands from the forces of evil. He summons her once more to the Lost Lands, since this time, it is not only the destiny of Lost Lands at position, but the entire human world... Susan's universe.