Valkyrie Drive was briefly listed on the website shopto.com to be released in Europe. Before the listing was pulled, the product page said the game would release on September 16th. The publisher is rumored to be PQube, since the company liked a Tweet the rumor was mentioned in.
Developed by the same producer of the Senran Kagura series, Kenichiro Takaki, Valkyrie Drive: Bhikkhuni is a game where young girls are succumbing to a mysterious virus. The virus in question doesn’t give them a cold or anything like that, but instead transforms the girls into weapons. The game released last year in Japan for the Playstation Vita.