In the town of Kurouzu-cho, Kirie Goshima lives a fairly normal life with her family. As she walks to the train station one day to meet her boyfriend, Shuuichi Saito, she sees his father staring at a snail shell in an alley. Thinking nothing of it, she mentions the incident to Shuuichi, who says that his father has been acting weird lately. Shuuichi reveals his rising desire to leave the town with Kirie, saying that the town is infected with spirals.

But his father's obsession with the shape soon proves deadly, beginning a chain of horrific and unexplainable events that causes the residents of Kurouzu-cho to spiral into madness.

[Written by MAL Rewrite]

New Beginnings in Familiar Lands

After a horrific accident put her on life support, the last vestige of freedom Keina Kagami had was in the VRMMORPG World of Leadale. When she wakes up in the body of her game avatar, though, Keina-now Cayna-finds that the worries of her old life appear to be a thing of the past, but somehow this new land doesn’t seem to be quite the Leadale she remembers…

Tanjiro, Inosuke, and Zenitsu accompany the Sound Hashira, Tengen, on a mission to Yoshiwara to help search for his missing wives who were investigating rumors of demons within the district.

The deity that protects humanity grants superpowers to the members of a middle school "hero club," who must assume magical forms to combat invading creatures from another world.