As police inspector Yamato Kansuke pursues a certain man in the snowy mountains of Nagano, a shadow suddenly appears in his field of vision. While he's distracted, a rifle bullet fired by someone grazes his left eye and causes an avalanche accompanied by a roar. Ten months later, Kansuke, having miraculously survived the avalanche, receives a report that a researcher at the Nobeyama National Astronomical Observatory has been attacked.

Mahiro Yasaka is just an ordinary high school student, until one day he is suddenly attacked by a dangerous monster. Just when everything seems to be lost, he is saved by a strange girl named Nyaruko, who claims to be the shape-shifting deity Nyarlathotep from horror author H. P. Lovecraft's Cthulhu Mythos.

The scenery takes place in a private high school involving the concept of "saviors." They are known as people who possess awakened memories of their past lives. The story tells of a young boy named Moroha Haimura who comes to this private school. At the school, there are two types of people: Saviors, who fight enemies with weapons and techniques gleaned from the Puraana powers from their own bodies, and Kuroma, who wipe out enemies with magic to manipulate the Maana powers that surpass physics. Moroha Haimura is the first person with past lives of both Shirogane and Kuroma.

Hakuno Kishinami finds himself in the midst of a Holy Grail war with no memories of how he got there. Through his confusion, he must fight to survive.

Atsushi Nakajima was kicked out of his orphanage, and now he has no place to go and no food. While he is standing by a river, on the brink of starvation, he rescues a man whimsically attempting suicide. That man is Osamu Dazai, and he and his partner Kunikida are members of a very special detective agency. They have supernatural powers and deal with cases that are too dangerous for the police or the military. They're tracking down a tiger that has appeared in the area recently, around the time Atsushi came to the area. The tiger seems to have a connection to Atsushi, and by the time the case is solved, it is clear that Atsushi's future will involve much more of Dazai and the rest of the detectives!

Haruto Tokishima, a student from Sakimori High School living on the sphere's "Module 77", discovers a mysterious and powerful mecha called Valvrave (ヴァルヴレイヴ Varuvureivu?) and uses it to defend the module from a Dorssian invasion that takes over the rest of JIOR. Once they learn that both Dorssia and the ARUS intend to claim the Valvrave for themselves, with no concern with their lives, the students of Sakimori High declare Module 77 an independent state and abandon JIOR territory. Soon after, several other Valvraves are found inside the school and some of them are claimed by other students who join Haruto's fight to protect it. Once Haruto is approached by L-elf Karlstein, a Dorssian spy who claims to have the intentions to one day stage a revolution in his own country, both join forces in an unlikely alliance to secure the sovereignty of their newfound nation declared and officially recognized as New JIOR.

Kuroko reunites with the "Generation of Miracles" when former rivals are humiliated in an exhibition game against a notorious street basketball team.

Lucy is a 17-year-old girl, who wants to be a full-fledged mage. One day when visiting Harujion Town, she meets Natsu, a young man who gets sick easily by any type of transportation. But Natsu isn't just any ordinary kid, he's a member of one of the world's most infamous mage guilds: Fairy Tail.

Anos Voldigord was a tyrannical Demon King that eradicated humans, spirits, and even the gods, but became bored of eternal warfare and reincarnated with dreams of a peaceful world. However, what awaited him in reincarnation after 2000 years were descendants who became too weak after being accustomed to peace, and all sorts of magic that deteriorated to the extreme. Anos enters Demon King Academy that gathers and educates those who are viewed as the reincarnation of the Demon King, but the academy could not see through his true powers and ends up branding him as a misfit.

A town of people slowly go insane over increasing obsessions with spiral shapes: patterns in the clouds, everyday objects, hair, insects, skin.