Bokurano: Ours is a Japanese science fiction manga by Mohiro Kitoh that was serialized in the monthly manga magazine Ikki from 2003 to 2009; 11 tankōbon have been published by Shogakukan. It is about a group of middle-school students who unwillingly assume the task of piloting a giant mecha named Zearth in a series of battles against mechas from parallel worlds, where the survival of Earth is dependent on their continuing to win at the cost of the life of the pilot of each battle. The series has been adapted as an anime television series directed by Hiroyuki Morita and produced by Gonzo that aired in 2007, and a light novel series called Bokura no: Alternative with an alternative story by Renji Ōki and character designs by Kitoh himself. The manga is licensed in English by Viz Media, which began serializing it in the online English version of Ikki on July 23, 2009; the first print volume was published in February 2010.