Mizuki Nana will release her 40th single (currently untitled) on October 7.

It will be a double A-side single featuring "FIRE SCREAM," which is the new theme song for smart phone game 'Senki Zesshou Symphogear XD UNLIMITED.' This song was composed by Agematsu Noriyasu (Elements Garden), who has also composed all five theme songs for the TV anime 'Senki Zesshou Symphogear,' and written by Mizuki. 

More details on the single will be revealed soon, so stay tuned!

Source & Image: natalie