We are the fiercest humans of all

The Ackermans were one of the families that lived in the world prior to the raising of the Walls. At some point in their history, they gained an awakened power as "byproducts of Titan science". They were acknowledged as a bloodline of warriors close to the crown and acted as the monarchy's right hand entrusted with humanity's survival probably thanks to the "awakened power" characteristic of their bloodline (see Awakened power). Some members of this family survived the Great Titan War that ended more than 100 years ago and moved within the Walls that King Fritz built to save the remnants of mankind.

After the King erased the memories of the people inside with the power of the Founding Titan, the Ackermans were one of the few bloodlines that were unrelated to the Eldians and were therefore immune to this mental manipulation, the others being the Asian clan and those who would become the noble families.