You and Jungkook are best friends, you are 17 and he's 16, you look after him as if he were your younger brother. You live in a city surrounded by a wall, and you were told the wall was built by Gods, made to protect you. You never cared for the wall, but Jungkook was always curious.

One night, you wake up to find Jungkook sneaking out. You yell for him but he's already gone. You run after him, the both you make to a military based set on the wall, which was the only way out of the city.