Senran Kagura producer Kenichiro Takaki is working on a new mixed media franchise called Valkyrie Drive, which features more transforming girls. The official website for Valkyrie Drive: Bhikkhuni updates with new details on the story and how the girls transform into weapons.

In Valkyrie Drive: Bhikkhuni a mysterious virus that affects girls in their teens and 20s suddenly appeared out of nowhere. Once this virus takes over, it can transform girls into deadly weapons.

Thus far, this special virus has been classified into two types: the “A-Virus” and the “V-Virus”. The world government decided to take measure by protecting these girls that have been infected by the virus by creating five man-made islands used to keep them safe and isolated.

The artificial island of Bhikkhuni became known for being able to successfully control the V-Virus. There’s an academy at Bhikkhuni, and they say that those who enroll there can successfully overcome the virus. That said, the girls decided to enroll with high hopes.

In this academy, there are sisters that have been infected by the V-Virus. The innocent Rinka Kagurazaka who possesses a hidden strength within her kindness. And Ranka Kagurazaka, the social and delicate caring sister.

Little do these girls know that there’s only one way to control this virus—by fighting between those who are infected.

As previously reported, weapon transformations are known as “Drive”. The “Liberators” are the player’s characters, while the “Exster” are the support characters. When the Synchro goes up, the Exster can transform into a weapon.

While the Exster is in a weapon form, you can activate the powerful “Drive Break” ability. There are several steps to weapon transformations, and increasing levels will lead to even more powerful weapons with different forms and abilities.

In order to perform a Drive, you’ll need to increase the Synchro Rate between the Liberator and Exster. Once you pull it off, you’ll also get to check out the pair’s special transformation sequence.

Valkyrie Drive: Bhikkhuni will release in Japan sometime in 2015 for PlayStation Vita.