When the intimidating Rintaro meets the open-minded Kaoruko, the unlikely duo grows closer. The issue? Their neighboring high schools hate each other.

After high school, Koyomi Araragi's story ended. However, the stories of the girls he saved continued, serving as prequels or sequels to their youthful struggles.

Mari Tamaki is in her second year of high school and wants to start something. It's then that she meets Shirase, a girl with few friends who's considered weirdo by the rest of the class and...

Sasaki is an overworked salaryman drifting through the corporate grind, sustained by cigarettes and the cheerful service and smile of Yamada, the clerk at his favorite supermarket. But one night after a grueling shift, he arrives late to find Yamada nowhere to be seen. With nowhere left to smoke, his spirits sink—until a pierced young woman calls out to him: “You can smoke here.”

When the world's seven most advanced robots and their human allies are murdered one by one, Inspector Gesicht soon discovers that he's also in danger.

A vortex drops a being from another world into a yakuza's life - a life that's about to be greatly changed.