Fu Pin, a three-year-old demon world little princess, because her family is too poor, gets "returned" by her biological demon king father to the immortal cultivation world to find her mother, yet mistakenly joins the entire immortal world's poorest Tianjian Sect. The "five-element spiritual root waste" looked down upon by everyone turns out to be the once-in-ten-thousand-years chaotic spiritual root! From then on, the little demon girl leads a group of poor senior martial brothers to break into secret realms, tame spirit beasts, beat proud geniuses, earn spiritual stones, and all the way leads the dilapidated sword sect to become the top tier of the immortal world, also uncovering the secret hidden between the immortal and demon worlds for many years.