Tao Xue unexpectedly time-travels to the cultivation world, coming by a twist of fate to the Immortal Sword Sect. From a little girl who knows nothing about cultivating immortality, she embarks on her very own path of cultivating immortality. Endowed with top-grade fire and wood dual spiritual roots, she masters sword techniques, learns spells, ventures into secret realms, seeks opportunities, and successively encounters spiritual pet companions, each with their own unique abilities. The seemingly soft and cute little junior sister always manages to win by a surprise move in times of crisis. With trial after trial, her talent and secrets gradually unfold, and a passionate journey of immortality belonging to the little junior sister thus begins.