Miiru Kamashiro

Miiru is a new freshman at the college Taka, Keisuke, and Tetsuya attend. She decides to join Keisuke's Ancient Chinese Mythology Club, where she sees and reads some of the "Shi Jin Ten Chi Sho". She believes Keisuke's story about another world inside the book, where his little sister was pulled in and became the Suzaku No Miko. Miiru, however, is the second of the Shitennou working for Tenkou, and has the ability to use blood to control or harm people. She can plant parasites in the blood, or make dolls out of blood and use them as tools for manipulating a person's actions. Miiru is the older sister of Ren, and like her younger brother, was granted her powers by Tenkou and can travel between the two worlds.

From Fushigi Yuugi - The Fire of Suzaku's Wings