Angelic Layer (エンジェリックレイヤー)

Angelic Layer (エンジェリックレイヤー Enjerikku Reiyā) is a manga series released by Clamp. The manga is published in Japan by Kadokawa Shoten, and in English by Tokyopop. It is the group's first work to use a quite different art style unseen in any other CLAMP series, which uses a more distinctly pared down style. There is less emphasis on detail and more on accentuated posing and gestures. This kind of artwork would later be used in series like Chobits and Tsubasa: Reservoir Chronicle.
The manga was adapted into a 26-episode anime series titled Battle Doll Angelic Layer (機動天使エンジェリックレイヤー Kidō Tenshi Enjerikku Reiyā, lit. Mobile Angel Angelic Layer) which aired on TV Tokyo from April 1, 2001- September 23, 2001. Seven volumes of videos were released by ADV Films on VHS and DVD in 2003. It was re-released in 2005 as a five volume box set.
Angelic Layer takes place in the same universe as Clamp's later work Chobits, which similarly deals with the relationship between humans, human-created devices, toys, and godlike power. Several characters also appear in Clamp's Tsubasa: Reservoir Chronicle including most of the main characters, as well as the angel Blanche.

# Reference
http://en.wikipedia.org/wiki/Angelic_Layer
Angelic Layer - The Complete Collection(Amazon.com)