The protagonist is the player named protagonist of the campaign mode.

He was found in a capsule opposite Edgars, on the surface and taken to Vision HQ by The Visions where he becomes a scout.

After awakening inside Vision HQs clinic he undergoes training by Meister, after a couple of training missions he is tasked by Meister to gain the approval of three other officers, Chunky, pH and Cuff Button. After he did he was supposed to defeat Meister to pass his qualification exam but it was interrupted by Freia, he defeated her and the Visions deemed it fit to pass him anyways.