Due to frequent misadventures with the supernatural and her hectic school life, Nene Yashiro can barely catch a break until Kamome Academy's annual sleepover event comes around. Nene is excited to blow off some steam with her best friend Aoi Akane and the rest of her class at the get-together. Unbeknownst to her, the sleepover falls on the same date as Urabon, when the line between the dead and the living gets distorted, allowing wicked spirits to come out to the surface. When an evil ghost is about to attack her, Nene is rescued by a mysterious figure: Shinigami, the Sixth Wonder that can trap souls using his flute. In that moment, Shinigami takes notice of Aoi and abducts her to use her as a sacrifice that will close the barrier for good. Joined by Hanako-kun and Akane Aoi, Nene must embark on a journey into the deepest confines of the world of the dead to save her best friend before it is too late.

A virus spreads across the world, transforming all humankind into wild, slavering, furry beasts: cats, to be precise. Those few survivors who remain human take refuge in the dark corners of the earth as they fight back against the feline horde. Kunagi, a man with no memory of his past yet a deep knowledge of cats, struggles to hold on with only his wits and a will to survive. Yet the virus transmits merely through cuddles, and Kunagi finds kitties so hard to resist! Is his willpower strong enough to withstand this hair-raising cat-tastrophe?

Wrongly convicted of a crime, 34-year-old Shigeru Yoshioka loses everything, including his trust in women, and withdraws from society as an unemployed recluse. One day, he stumbles upon a way to travel to another world. When a mysterious status screen appears on his computer, Shigeru sacrifices his looks to gain an overwhelming 100 trillion and 5,100 parameters. Now reborn as an "Absolute God," he begins his second life in another world.

Legends tell of an invincible martial art known as Mutsu Enmei-Ryu, an unarmed style that allows the user to defeat any number of armed opponents using incredible speed and strength. This is the story of three generations of those who bear the name Mutsu, and their encounters and battles with the strongest fighters of their era.