George Miyagusuku

An Okinawan-American US Army veteran who served in the Vietnam War, George is one of the soldiers present when Saya goes insane in Vietnam, killing friends and enemies alike. One of the few survivors, he is asked by the first David to watch over Saya's sleeping body after she falls into another hibernation cycle. He lost his wife and biological children in an accident years before, but is inspired to live by the sound of Saya' heart beating in her cocoon. When she wakes up from her sleep and he sees she is no longer a threat, he adopts her as his daughter. By this time, he also has two adopted sons, Kai and Riku, and he runs a restaurant-bar called Oboro, in Okinawa.

(Source: Wikipedia)