Lingxi, the last surviving descendant of ancient Qingqiu, carries a mysterious iron blade and embarks on a journey to recover the fragments of the Shan Hai secret scroll. In the fantastical and magnificent wastelands of Shan Hai, the aloof Lingxi meets the young Muye and the divine beast Baize. The three travel together, purifying strange beasts corrupted by miasma and healing one another along the way. When a powerful enemy's scheme to use the secret scroll to reset heaven and earth comes to light, Lingxi lets go of her past obsession and awakens the power of the Nine Tails. In the final battle, she chooses to shatter the scroll to protect all living beings, returning boundless vitality to all things.