Jake Carter, an academy outcast branded as a "deserter's son," endures daily ridicule while struggling in the shadow of his father's tarnished legacy. Written off by his peers as a hopeless rookie, Jake harbors a secret: he is the only one capable of awakening Corona Prime, a forbidden, legendary mech that has remained sealed for decades. When a cataclysmic Class-5 Titan erupts from beneath the earth, crushing the dome base's defenses and obliterating all active units, humanity is left without hope. As panic spreads and the base stands on the brink of total annihilation, Jake races toward the hangar, determined to face the monster alone.