BokuranoBokurano.

Bokurano: Ours (ぼくらの, Bokurano) is a Japanese manga series written and illustrated by Mohiro Kitoh. It was serialized in Shogakukan's seinen manga magazine Monthly Ikki from November 2003 to June 2009, with its chapters collected in 11 tankōbon volumes. It is about a group of middle-school students who, under the pretense of participating in a game, agree to the task of piloting a giant mecha in a series of battles where the survival of Earth is dependent on their continuing to win, and they gradually realise how high are the stakes of this supposed game.