A Certain Scientific Accelerator manga volume 8 features story by Kazuma Kamachi and art by Arata Yamaji.

When Accelerator sneaks out of the hospital, he runs into a mysterious young woman. Matsuri is stubborn, snobby, and claims to have a common enemy with Accelerator. But even if that’s true, Accelerator has his own problems to deal with–like the strange hallucinations he keeps having!