Protect the human race from an ancient enemy known only as the CIMA in Natsume's unique real-time role-playing game for the Game Boy Advance.

Take control of Arc J, a guardian protecting the human world from the threat of the CIMA, a semi-human race from another world.

Publisher Natsume touts this as a "revolutionary new type of RPG," blending action and strategy elements and allowing players to enlist the help of NPCs (non-playable characters) to help solve puzzles and otherwise affect the storyline.