Bi Ni is a Vampire and a maid serving Fan Li Lao in the Lasombra Clan. She is seen by Fan Li Lao's side a number of times after Zhao Yan and Zhi Yan are taken by the Sabbat.
She plays a major role in Fan Li Lao's games when she attempt to appear to help Zhao Yan by tricking her into escaping after giving her the Qi Yue Lu Hua.
She next appears outside a room in the castle, telling Yi Xai not to disturb Fan Li Lao as he is busy with Zhao Yan.
In the days prior to the Forbidden Sphere event, the Devil Doll attacks her and bites her. She then assumes her appearance to give Zhi Yan the cure for Zhao Yan's power restraint.