, also known as Battle Vixens in North America, is a Japanese manga series written and illustrated by Yūji Shiozaki. Loosely based on the classic 14th century Chinese novel Romance of the Three Kingdoms, the series revolves around an all-out turf war in the Kantō region of Japan where fighters known as from seven schools battle for supremacy. The story centers on Hakufu Sonsaku, a fighter who transfers to Nanyo Academy, one of the seven schools involved in the turf war. The manga was serialized in the seinen manga magazine Comic Gum from April 2000 to August 2015, and the first tankōbon was released in October 2000, with a total of 24 volumes available as of September 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 sequel manga titled Shin Ikki Tousen began serialization in Shōnen Gahōsha's Young King OURs magazine in November 2015. A 13-episode anime television series adaptation animated by J.C.Staff aired between July and October 2003, on AT-X and other channels. A second anime season animated by Arms aired on AT-X between February and May 2007, spanning twelve episodes. A third anime season, also animated by Arms, aired on AT-X between June and August 2008, spanning twelve episodes and featuring an original story and characters. A fourth anime season animated by TNK 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. A three-episode anime television series adaptation of Shin Ikki Tousen, once again animated by Arms, aired on AT-X in May 2022. The first anime season was licensed in North America by Geneon Entertainment, but it is now licensed by Funimation after Geneon withdrew from the anime market. The second anime season is licensed in North America by Media Blasters. The third anime season was also licensed by Media Blasters, but it is now licensed by Funimation. The fourth anime season is also licensed by Funimation. Synopsis In the Kantō region of Japan, seven high schools compete in a turf war for territorial supremacy: Nanyo Academy, Kyosho Academy, Seito Academy, Yoshu Academy, Rakuyo High School, Gogun High School, and Yoshu Private School. The fighters