Godo

ゴドー

Gado is the last unmodified human in the world of Notes. Because of that, he can't breathe the air of the ruined world without the help of medications and can't eat the food produced in factories for A-Rays and enhanced humans, as it's too nutritious for him. [Spoiler] He was born on the "Western Continent" before it was invaded by Type-Jupiter. He lost his family during the destruction that occurred before and during the battle between Ado Edem and Type-Jupiter. After he dug and learned how to use Black Barrel, he participated in an interception mission of Type-Venus, known as "Bird Drop." It was he who delivered the shot that took down Type-Venus. Later, he settled down in a city that was known for its "World trees," and made a living by shooting down "angels" that descend from their branches. [/Spoiler] (Source: TYPE-MOON Wikia)