Tempest-King of Mecha

Once hailed as the alliance’s greatest mech pilot, Cael Thorne is condemned as a traitor and disappears under the name Ash Gray, working quietly as a janitor at a mech academy. But when Aria Vale—the woman he once rescued—is deceived by her fiancé and left trapped inside a monster gladiator arena, Cael has no choice but to wake Orion Zero, the legendary last mech, and step back into war with a flawless 100% neural sync rate.