In the world of Attack on Titan, the origins of the Ackerman clan remain shrouded in mystery, with little revealed about how each individual known to carry the name was powerful enough to be equated to an entire brigade of soldiers. The two most prominently featured individuals who belonged to this lineage, Levi and Mikasa Ackerman, were easily the Survey Corps' strongest soldiers apart from the Titan shifters within their ranks, which further enhanced the aura of mystique around them.