Bravern

A mysterious giant robot that made a sudden appearance amid an alien Hauler attack. Possessing a fully autonomous personality and an overwhelmingly passionate spirit, Bravern spontaneously plays his own theme music during battle and insists that his pilot shout out the names of his special moves. He harbors an almost fanatical level of obsession and unwavering trust toward the protagonist Isami. His true identity is none other than Lewis Smith, reborn after sacrificing himself in the future by merging with enemy technology and crossing through time.