Rex is not a normal teenager.Infected by a virus called nanites he transformed into an 'evo' .He gained a special superpower which gave him the ablity to transform into a machine and communicate with machine.However, he lost all the memories of his past because of this virus.
evo' is actually humans that mutated into monster because of the virus nanites these humans will normally lose their mind and go on a rampage but Rex is on a a different level.He is capable of controlling these nanites instead of getting controlled.
Nanites
As he was recruited by an organization called Providence he is now doing his best to cure humans that were infected by this nanites.
Accompanied by his partners agent six they are trying to bring the world back to peace.
Agent six is a top agent of providence and Rex handler.His name comes from the fact as the sixth dangerous man on the earth.Six is a strict and discipline agent.He is also an expert swordsman, skilled in martial art,an expert acrobat and good at throwing knife.