Photon: The Idiot Adventures is a Japanese original video animation (OVA) series created by Masaki Kajishima.
The series follows Photon, a boy who possesses superhuman strength, but is extremely simple-minded.
He marries 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.
and Photon: The Idiot Adventures that the two series are related,[citation needed] as the world that Photon lives on is, in fact, the distant past of the planet Geminar before something happened to revert it to a pre-space flight world again, the parallel world that Isekai no Seikishi Monogatari/Tenchi Muyo!