南宋杭州，小白小青寻找到阿宣的转世许仙。小白与许仙终成夫妻。二人开办保安堂治病救人，却被法海识破小白与小青的妖怪身份，要阻止小白与许仙在一起。

Xiaobai finally found Xu Xian, the reincarnation of Axuan, after 500 years, the two met on the Broken Bridge. Xiaobai and sister hid in the streets and alleys, started a lively life in human world with him and his brother-in-law Li Gongfu.