Because she was abandoned by Lu Zhanyuan 15 years ago, Li Mochou turned into hatred because of love, and angered the Lu family, leaving bloody handprints to destroy the Lu family. Lu Liding's family took Wu Sanniang and her son who came to find relatives and fled to the stone cave where Yang Guo lived. Sanniang was poisoned to save Wu Sansi, who was poisoned by the poisoned needle. In order to save their niece Cheng Ying and their daughter Lu Wushuang, the Lu family divided the Jinpa that Li Mochou gave to Lu Zhanyuan in two and tied them between the necks of the two women.

Li Mochou killed Lu Liding and his wife, Huang Yaoshi rescued the poisoned Cheng Ying, and Li Mochou took Lu Wushuang abducted. Yang Guo accidentally touched the poisonous needle, and the crazy Ouyang Feng detoxified him, but he asked Yang Guo to recognize him as a foster father, and even passed the toad power to Yang Guo. Guo Jing and Huang Rong discovered Yang Guo and the Wu family brothers and brought them back to Peach Blossom Island. Yang Guo worshiped Huang Rong as his teacher, but Huang Rong only taught him poetry. In the martial arts competition, Yang Guo lost to the Wu family brothers, so he used Ouyang Fengjiao's toad kung fu, Huang Rong and Guo Jing decided to send him to Zhongnanshan to teach Quanzhen. Li Mochou broke into the ancient tomb, trying to steal the secret book "Jade Girl Heart Sutra", but she lost to her junior sister Xiaolongnv.

Guo Jing took Yang Guo to study art in Zhongnan Mountain, and Yang Guo repeatedly asked about the cause of his father's death. Guo Jing was angry and hit the stone stele at the foot of Nanshan Mountain. Huo Du proposed to the little dragon girl in the ancient tomb and was attacked by the jade bee. Guo Jing told Yang Guo's life experience, Qiu Chuji asked Zhao Zhijing to keep Yang Guo under the door, and Zhao Zhijing repeatedly made things difficult for Yang Guo and only taught Yang Guo's formula. Yang Guo was unbearably beaten and fled into the ancient tomb, but Xiaolongnu refused to take it in. Grandma had to send Yang Guo back to the Quanzhen School. During the dispute, Hao Datong missed the grandmother and killed her grandmother, Xiaolongnv took Yang Guo back to the tomb and accepted him as a disciple.

Xiaolongnv started teaching Yang Guo to practice exercises. After a while, Yang Guo grew up, and Xiaolongnv told Yang Guoyu the mystery of the Heart Sutra. The two practiced exercises naked among the flowers, Zhao Zhijing followed Yin Zhiping to expose his love for the little dragon girl, and the two wrestled the little dragon girl during the fight. Zhao Zhijing and Yin Zhiping vowed not to spread the incident. The seriously injured Little Dragon Girl thought they would kill Yang Guo. Yang Guo, who escaped from the tomb, returned to the tomb and found that Li Mochou and Hong Lingbo were threatening Little Dragon Girl. Yang Guo let go Broken Dragon Stone, live and die together with the little dragon girl. Xiaolongnv and Yang Guo found an exit in the secret room and exited the ancient tomb through the waterway.