Xu Yin and Su Jun were transferred when they were born. Xu Yin became a native of Shijing Township, while Su Jun entered the palace and became a royal bloodline. The two met Xiaobai, a girl who took the elixir in Lianhua Town. Later, Xu Yin's adoptive mother died. Xu Yin followed Su Jun to the imperial city for revenge, but met Xiaobai who transformed into a rabbit demon. The emperor wanted to capture Xiaobai to refine the elixir of immortality. Xu Yin sacrificed his life to save Xiaobai, and Xiaobai wanted to save Xu Yin. When he turned back into a rabbit, Xu Yin searched for medicine in Fengshan with the miracle doctor Yu Lan in order to restore Xiao Bai's human form. After Xiao Bai recovered, Xu Yin entered the palace with the help of Su Jun to find the murderer and the truth. However, he found out that Yu Lan was also a royal bloodline. Later, the emperor conferred the title of Princess Landilan, but Yu Lan traveled far and wide and refused to stay in the palace. The person who killed Xu Yin's adoptive mother, Su Jun's mother, turned out to be...
