Spirits & Cat Ears manga volume 11 features story and art by Miyuki Nakayama.

Neneko’s investigation of the Saiguu family and the bridge where Yukari’s life changed forever has taken an even darker turn. As Neneko’s surroundings are enveloped by a black, swirling mist, she fights to break free from the haze, striking back at her would-be assailants. They attempt to defend themselves, but Neneko's reason is failing her, and she can see nothing but red...