Ikki Tousen

Ikki Tousen (一騎当千, Ikkitōsen, lit. "A Mighty Knight who Matches a Thousand Knights"), also known as Battle Vixens in North America, is a manga series written and illustrated by Yuji Shiozaki.

The manga began serialization in the seinen manga magazine Comic Gum, and the first tankōbon was released in October 2000, with a total of 24 volumes available as of September 25, 2015. The manga was licensed in North America and the United Kingdom by Tokyopop with adaptation from Keith Giffen under the title Battle Vixens, and in Australia and New Zealand by Madman Entertainment.

A 13-episode anime adaptation produced by J.C.Staff aired between July and October 2003, on AT-X and other channels. A second anime season produced by Arms aired on AT-X between February and May 2007, spanning twelve episodes. A third anime season, also produced by Arms, aired on AT-X between June and August 2008, spanning twelve episodes and featuring an all-new plotline and characters. A fourth anime season produced by TNK and Arms aired on AT-X and other channels between March and June 2010, spanning 12 episodes and introducing new schools and characters. An anime OVA was announced by Media Factory, and premiered in Japanese theaters on November 12, 2011.

Plot
Sealed in ancient jewels are the spirits of the heroes who tried and failed to unite China in the Three Kingdoms era. These jewels have been scattered throughout Japan, and have the power to draw out the full potential of those who inherit them. However, those owners, known as Toushi, are possessed with an insatiable appetite for battle. Hakufu Sonsaku is one such Toushi. Living in the country, Hakufu's desire to beat something to a pulp goes unfulfilled until her mother tells her to go to Tokyo, where she starts training with other Toushi and sets foot on the path to her destiny.