"Nabari no ô" 2008

Synopsis:

In the shadows of this world, ninjas fight for control of an ancient technique which holds untold strength. This coveted power dwells within apathetic Miharu, a fact the guy really couldn't care less about - until the rival clans bring their battle to him. Now, he must choose a side if he hopes to survive - but when conflict is waged in secret, friend and foe prove difficult to tell apart.

Tagline: Friend and foe prove difficult to tell apart.
Cast:
Satoshi Hino
Satoshi Hino
Kouichi Aizawa (voice) 
Ayumi Fujimura
Ayumi Fujimura
Raimei Shimizu (voice) 
Mitsuki Saiga
Mitsuki Saiga
Yoite (voice) 
Rie Kugimiya
Rie Kugimiya
Miharu Rokujo (voice) 
Daisuke Namikawa
Daisuke Namikawa
Tobari Durandal Kumohira (voice) 
Ryotaro Okiayu
Ryotaro Okiayu
Kotarou Fuuma (voice)