Photon is a 6 episode anime OVA series by Koji Masunari. The main character, Photon, possesses superhuman strength but is extremely simple-minded. He engages in heroic adventures of different varieties. He accidentally gets married to a rebel space pilot named Keyne, and becomes involved in fighting an evil wannabe galactic emperor and his "bumbling henchmen".
A manga based on the anime was written by Hiroshi Kanno.