Agate is a mysterious boy on his way to the prestigious Cluster Edge E.A. school. He soon discovers he has a power that he never knew he possessed, and it has the power to change the world.

Agate finds his way to Cluster Edge. Once there, he discovers that the school is occupied by the military school due to an upcoming competition. After a boy is injured so that he can't compete, Agate heals him.

The military man, Vespia, conducts an investigation to find out the details surrounding Chalce's death. Little does he know, Agate's power will reveal who murdered Chalce--a secret Vespia doesn't want revealed.

Hematite leaves the academy and learns his father is meeting with Ludwig despite the ban against doing so. Meanwhile, Chrome fights the military to avenge Chalce's death.

As repayment for saving his life, an old man treats Agate to dinner. Unable to pay the bill, the restaurant holds the old man captive. Agate sets out to save the old man--this time financially.

Fon's quest for plane parts bring him to an old aviation museum. It's here that he encounters the Professor who will soon enact plans of his own.