Nijuu Mensou no Musume
English name: The Daughter of 20 Faces
Genres: Action, Adventure, Mystery
Type: TV, Episodes: 22
Aired: Apr 13, 2008 to Sep 28, 2008
Studio: Bones, Telecom Animation Film
Source: Manga
Rating: PG-13 - Teens 13 or older
Synopsis:
Chiko is the daughter of the wealthy Mikamo family who has to live with her aunt and uncle after her parents passed away. Because her aunt wants to inherit the Mikamo family's wealth, she gives Chiko poisoned food. One day, however, she's kidnapped by the Nijuu Mensou (20 Faces) and decides to join his clan. 

(Source: ZOMG)