Jack

Jack (ジャック, Jakku) is the younger brother of Queentia who also works for the Dealers. The FM-ian Corvus is, along with Virgo, the most wanted criminal on Planet FM. He also has something of an axe to grind with Omega-Xis. The two can perform Wave Change to form Jack Corvus, a fire-elemental being who can attack from the skies. He enters the story as a new transfer student at Echo Elementary, filling up Pat Sprigs's empty seat in 5-A. He is mostly emotionless around others, his sister being the only one he can open up to, though he does show a highly aggressive side as well.

He and his sister are were both orphaned in a war sparked over technological advances. As a consequence, he and his sister wish to use Meteor G's power to destroy the world's technology. Within the Meteor Server, Geo is able to talk them out of revenge, prompting their FM-ian partners to turn on their hosts, but they are deleted by Rouge and the siblings are saved. Jack is later seen celebrating the destruction of Meteor G with his classmates, having finally been able to open up to people.