Japanese indie fighter, Vanguard Princess has been released for PC in English and was some updated features such as updated visuals and content not found in the original. Publisher eigoMANGA is responsible for localizing the game.
Vanguard Princess comes with 10 playable characters as well as both story and versus modes. The story revolves around a young girl who was experimented on by the government and vows to destroy all of humanity as her revenge. Its up to the rest of the cast to stop her.
The story seems very simple but combat actually looks quite interesting. You can check out the free demo here if you are unsure about the game. The full game costs $5 and is available on Amazon, Gamersgate, and CNET.