After the nuclear war, Jiang Chen found himself in a chaotic world ravaged by Judgment Day. To survive, he rallied the refugees and established a base, eventually forming a federation. Armed with knowledge of Judgment Day technology, he returned to the world and sought to change its political structure, rescuing it from imminent danger and bringing about the Great Union of Earth Federation. As the federation expanded its territory, they also faced threats from above. This story is available as an original webcomic and official translations.