Fang Xin rescues Ai Li, captain of the Seventh Division, by chance on a rainy night, and is unexpectedly drawn into a supernatural world. During an aptitude test, he awakens multiple high-tier talents without using any potions, catching the eye of the nation's strongest organization, the Ninth Division. Under the guidance of his mentor Zhuge Heng, Fang Xin gradually discovers that his background, his parents' passing, and his grandfather's disappearance are all tied to a top-secret national security project—Project Honghuang One. Facing harassment from shadowy forces, he upholds justice, grows rapidly through life-and-death trials, swears to safeguard his homeland with his talents, uncovers the truth behind the doomsday prophecy, and embarks on his own path as a guardian.