As the Heavenly Dao collapses, only fragments of its remnants remain in the world, forming the Remnant Path of Heaven. Yu Xian, a young man born in an ordinary village, encounters a fortuitous opportunity that sets him on the path to immortality, where he joins the Baiyun Sect. He braves trials, visits various sects, and explores ancient ruins, gradually uncovering the long-buried secrets behind the collapse of the Heavenly Dao. Faced with countless tribulations and temptations along his immortal journey, he refuses to chase the illusion of eternal life. Relying on nothing but his mortal body, he seeks the surviving traces of the Heavenly Dao, steadfastly guarding his Dao heart as he walks an immense path that no one else dares to take.