Joey had grew up further north of Crestfall, beyond the Radiated Forest in a small suburbs named Durbaefay. It was a small community to especially care for the elderly and children. His parents had care for him during his childhood, but had tasks assigned in further distant lands. They have then granted Joey to his grandfather to further learn and grow. When he turned 18 he had crafted his trusty blade: Justice. Considering Joey had deadlock accuracy, his grandfather also wanted him to have a ranged weapon. He had first forged the Justice blade to have magnetic properties, which can be thrown to give range if need. However, in case his grandson was surrounded my enemies and had already tossed his sword, he had been given the Messiah as well.
Before the anime begins, he works as an officer in Crestfall. With his passion, dedication, and honor, he had raised the ranks and earned every promotion possible in law enforcement. Joey had finally earned the police chief career, and orders his elite squad to complete several operations that break the law.