Mega Man Star Force: Dragon

Mega Man Star Force is the successor to the Megaman Battle Network series. You take control of Geo Stelar, who partners with an EM-being known as Omega-Xis. Geo uses Omega's power to become Mega Man, and defends the world from the FM-ians.

Geo Stelar, an introvert who lost his dad to a space mission, bumps into EM-being Omega-Xis (aka Mega). When Mega claims to have information of Geo's father, Geo decides to work with him. Partnering up in a "EM Wave Change", Geo gains amazing power, and takes it upon himself to stop Planet FM from invading Earth, calling himself Mega Man in order to protect his identity.