Kadokawa Shoten (角川書店), formerly Kadokawa Shoten Co., Ltd. (株式会社角川書店 Kabushiki gaisha Kadokawa Shoten), is a Japanese publisher and brand company of Kadokawa Corporation based in Tokyo, Japan. It became an internal division of Kadokawa Corporation on October 1, 2013. Kadokawa has published both manga such as Sora no Otoshimono (Heaven's Lost Property) and magazines, such as Newtype magazine. Since its founding, Kadokawa has expanded into the multimedia sector, namely in video games (as Kadokawa Games) and movies (as Kadokawa Pictures).
It's the penultimate volume, and -- in true Bill & Ted time traveller fashion -- the girls must put on a concert to save mankind from a dystopian future. Of course, they will need the super-competent Hitomi Mishima, teen CEO, to pull it off, but Mishima has some personal issues to hash out before she can bring all her powers to bear.
Oh, and bartender Utako Sakura returns after a long absence, which was nice.
Silly fun overall. I'm sad to see the series wrapping up but agree there is no point in stretching it out further.