Bokurano: Ours(ぼくらのBokura no, lit. "Our") 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.