Grendizer U

Synopsis

Duke Fleed, the sole survivor of the destroyed planet Fleed, fled to Earth and was raised by Dr. Umon aboard a mysterious spaceship, adopting the alias Daisuke Umon. As he matures, he confronts the impending danger posed by King Vega and his forces, who seek to invade and dominate Earth. Alongside his allies Koji and Hikaru, and later his younger sister Maria Grace, Duke resolves to resist using his ultimate weapon, the mighty Grendizer.