What is the mystery linking two girl assassins?

Directed by Koichi Mashimo (Dominion Tank Police) from scripts by creator Ryoei Tsukimura (El Hazard), and featuring an acclaimed soundtrack by composer Yuki Kajiura (Blood: The Last Vampire)!

The beautiful and renowned assassin Mireille Bouquet receives a mysterious e-mail beckoning her to "make a pilgrimage to the past, with me." Intriqued by the cryptic message, and the hauntingly familiar music box melody attached to it, Mireille travels to Japan to meet the source of the email: one Kirika Yuumura. A quiet young girl, Kirika is also well-versed in the killing arts, but she struggles to come to terms with her own morality through a past clouded by amnesia.

In an effort to uncover Kirika's memories, as well as her mysterious links to Mireille own troubled past, these two young women form an uneasy alliance as the assassin duo known as "Noir," .