Leon may not be like all the other cybernetic allies of the city-state Kono, but he chooses to fight just like the others.
Leon is rather calm and collected. He prefers to think before he fires. When he's deep in thought, he can be seen chewing on the ends of his hair--which most people would call "odd." He's an intellectual and tries to avoid battle, but he's just too passionate about protecting Kono to no fight with everything he has.
He carries around a modified G36C that has a laser sight and a powerful nightvision scope. He also has a combat knife that he always has at his side.
Leon joined the Defense Force the day after his hometown was raided and his 10 year old little sister, Adalie--who was in his care--was maliciously raped and killed violently. After watching helplessly as his little sister died in his arms, he knew he had to take revenge. His only clue to who her killer was was a golden cross that she had been clutching.He swiftly joined the Defense Force--although he isn't a cyborg--and began his basic training. He held top marks in his class and finished his training a year earlier than the other initiates in his class. He then moved to the frontlines where he showed his physical prowess as well as his mental prowess. He received several commendations and still continues to fight and look specifically for the person who killed his sister.