Witch Craft Works Extra (Mizunagi, Ryuu)

The main story has concluded but what happens after that? The fate of Takamiya-kun, Kagari-san, and Kasumi-chan, the future of the KMM group, the true enemy of the chairman, and the continuing story. The history that was left behind... We'll show you all the stories that were left untold; the rich side stories of Witch Craft Works begin!

(Source: Kodansha, translated)