Bi Ni is a Vampire and a maid serving Fan Le Lao in the Lasombra Clan. She is seen by Fan Le Lao's side a number of times after Zhao Yan and Xi Yan are taken by the Sabbat.
She plays a major role in Fan Le 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 Sai not to disturb Fan Le 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 Xi Yan the cure for Zhao Yan's power restraint.