Demon Realm -- Demon Lord Mo Yuan went to the Northern Abyss to resolve a thousand-year heavenly tribulation, and has not returned for three years. Relying on the brocade pouch, black jade, and learned wisdom left by her father, daughter Duo Duo embarks alone on the path to find her father, breaking through toxic miasma forests, fighting wicked inns, passing deep ravines and swamps, and finally enters the Abyss to find the trapped Mo Yuan, and ventures to take out the ancient jade capable of resolving the heavenly tribulation. After the father and daughter return, they save the Demon Realm. In her growth, Duo Duo inherits responsibility, ultimately becoming the new Demon Lord, guarding the peace of the Demon Realm, and passing down the familial affection and sense of duty represented by the brocade pouch.