Li Shulo, a scientific genius, transmigrates to the Douluo Continent and unexpectedly awakens his past life's strategic thermonuclear weapon—the Nuclear Immortal Sword, and activates the "Nuclear Immortal Cultivation System". From then on, he embarks on a difficult path to maintain nuclear peace on the continent. To the extent that a poem is widely circulated on the Douluo Continent: "Nuclear bombs ride the wind, nuclear explosions shake the heavens and earth; with uranium, one is happy and carefree, without uranium, one is also crazy. One explosion withers mountains and rivers, another explosion shatters the sun and moon; a hundred battles of nuclear fusion, only I am the Nuclear Immortal!" This is the true portrayal of his life.