Isekai no Seikishi Monogatari(異世界の聖機師物語, lit. "The Tale of the Holy Machine Wielder from Another World") is an OVA anime series that is a spin-off of the Tenchi Muyo! series created by Masaki Kajishima. The series aired thirteen episodes on pay-per-view network Animax between March 20, 2009 and March 19, 2010. It chronicles the story of a young boy named Kenshi Masaki, who is summoned to the world of Geminar. The story shares some character names and general terms from the anime Photon, another series created by Masaki Kajishima.