Metro 2033: The Drifter

He was born Sergei Viktorovich Kozan, a former EMT who worked in the Emergency services of his home city of Atyrau in Southwestern Kazakhstan as a young eighteen year boy on the Job before the World Nuclear Holocaust, having survived the Nuclear detonation after being at a safe distance from the epicenter of the explosion, Twenty years later after his Spiritual Awakening as the White-haired Drifter known as Sergius, he wanders the Barren and Dangerous lands to brave a New world in a New era in search of a New life.