First of all, Li Mochou loved the little dragon girl from an early age.
Little Dragon Girl was abandoned by her parents after her birth, and was taken back to her grave by Lin Chaoying, who became Li Mochou's sister. In fact, before Li Mochou met Lu Zhanyuan, her nature was still very kind, and she took good care of this young little dragon girl. Every time I sneak down the mountain, I will bring her some novel food or use. Although commensurate with sisters, their feelings are actually no different from ordinary sisters.
Secondly, I betrayed my legacy and was driven down the mountain by Master, because I fell in love with Lu Zhanyuan and didn't do anything to hurt my legacy.
After being hurt by Wang Zhongyang, Lin Chaoying made a rule that as long as he entered the Tomb Institute, he was not allowed to associate with men or get married. However, Li Mochou was moved by meeting Lu Zhanyuan, who was personable after going down the mountain to play, and was found by the master when he returned to the ancient tomb and was expelled from the school. Although she betrayed her legacy, Li Mochou didn't do anything to hurt the ancient tomb school, nor did she denigrate the ancient tomb school after going down the mountain, so when the little dragon girl saw her again, she still called her the teacher elder sister.
Third, Li Mochou was abandoned by Lu Zhanyuan after going down the mountain. Li Mochou is her only relative, so she is called the teacher elder sister.
In fact, life in Li Mochou is still very poor. Abandoned by scum man Lu Zhanyuan, she became a Taoist priest. However, at the end of her life, she still loved Lu Zhanyuan very much. All the people who were killed by Li Mochou after going down the mountain were ungrateful people. It is estimated that she was deeply hurt by Lu Zhanyuan. After the death of Master and Sun Popo, the little dragon girl was only Li Mochou, so everyone used to call her Sister.