The transmigrator Jiang Han, carrying the "Return System", is reborn as an illegitimate son of the Jiang family who is considered useless. Starting from being poisoned to death, he picks up treasures by scavenging all the way, takes a future empress as his younger sister, enters the Sword Sect, storms an emperor's tomb, acquires the World Tree, obtains the Bronze Divine Temple, and finally uncovers world truths such as the continent resting on the back of a giant turtle and the tomb of the Master of Tongtian. He heads to the Western Land to search for the Nine Suns True Fire, embarking on a path of defying the heavens and changing his destiny.