Created in a secret laboratory, Leon is a prototype automaton designed to autonomously infiltrate and assassinate. After preliminary tests, the creators released it into the wilds to test its survival capability with a number of operatives tasked with tracking it down.
The automaton, when stalking its hunters, overhears of the organization's plan to strip it to its core and reverse engineer its matrix. This sent its task execution scripting into a frenzy of mission parameter recalculations. The researchers unwittingly underestimated its ability to assess objectives autonomously and to evade capture, Leon fled deeper into the wilderness. Many parties dispatched to capture the metal beast were never heard from again. Nevertheless, Leon assessed that the sponsors of the secret facility will never cease their attempts to recapture it and set for itself a new objective of seeking new existence far away. Soon enough it learned of the Adventurer's guild and signed up immediately to seek new experiences in company of similarly motivated creatures.