Onechanbara is a series of third-person hack-and-slash games developed by Tamsoft, originally appearing as part of Simple Series budget game line released only in Japan and Europe. The games involve a team of sisters, Aya and Saki, who are among the few survivors of a zombie outbreak. Complicating matters, both sisters suffer from a curse known as "Baneful Blood", which drives them crazy when they come in contact with the zombies' blood. They have vowed to use everything in their power to drive back the zombies so that they can once again live in peace.Two games from the series have been released in the United States: Onechanbara: Bikini Samurai Squad (for Xbox360) and Onechanbara: Bikini Zombie Slayers (for the Wii). There's also a live-action movie based on the game series.A new game called Onechanbara Z: Kagura was released on 1/19/2012, in Japan for Xbox360. Instead of Aya and Saki in this game, we have Kagura and Saaya: a pair of vampire sisters. The game was the first of the series that was not a budget game like its predecessors, and the marketing has been rather big. However, due to its Xbox-exclusivity, it failed to attract a wide audience (not that it was making any pretense to). The game is slated for an Updated Re-release on the PS3 (release date: Oct. 24, 2013), featuring NoNoNo, a character from D3Publisher's other franchise, Dream Club series.
The Onechanbara games use the following tropes: