In a modern city with highly advanced technology, a secret unknown to the public lies hidden: ancient martial arts and immortal cultivation. Lin Yi, an ordinary young man from the city, is reborn in his high school days after an accident and awakens a mysterious ancient martial arts and immortal cultivation System. From then on, his life changes beyond recognition. He must face all kinds of challenges in the real world while continuing along the path of cultivation, uncovering one ancient mystery after another, until he finally becomes the immortal of legend.