Dreaming of a magical world every night, the young Toramizu Ginta yearns to be able to go there. With only his friend Koyuki believing in his dreams, Ginta remains positive despite the slander he receives from others over his dreams. But his wishes are answered, as one day a large door appears in front of Ginta, summoning him to the land of MAR Heaven. In this land, the weapons known as ARMS exist. While initially Ginta greatly enjoyed the discovery of this magical world, he soon learns of the terrible wars that have once plagued MAR Heaven and the upcoming war that may soon appear.

Loki, the Norse god of mischief, has been exiled to the human world for what was apparently a bad joke. Along with being exiled, he's forced to take the form of a child. He's told the only way he can get back to the world of the gods is if he can collect auras of evil that take over human hearts, and so to do this he runs a detective agency. Loki is soon joined by a human girl named Mayura who is a maniac for mysteries, and she soon helps out in her own way. However, soon other Norse gods begin to appear, and most have the intent to assassinate Loki for reasons unclear.

Mary Smith is a clumsy girl with wild red hair who can't seem to do anything right. After moving in with her Great Aunt Charlotte, Mary finds herself lonely and bored, until one day she spies a cat which seems to keep changing color every time she sees it. Curiosity gets the better of her and she follows it into nearby woods. Deep in the forest, the cat takes her to a clearing with dead trees and brown grass, where the only sign of life is a cluster of mysterious blue flowers that Mary has never seen before. The gardener of the estate later tells her that the rare species is called "Fly-by-Night," and is said to be sought by witches for its incredible magical power. When the strange cat returns to her one night, Mary is led once again into the woods, but this time to an old broomstick hidden by a gnarled tree. After she clumsily squashes some Fly-by-Night against the broomstick, it begins to glow, whisking her off into the sky. Her wayward journey ends at the Endor College for Witches, where she is mistaken for a new student. And so, Mary must learn to look after herself in this marvelous new world of magic, where things are not always as they seem. [Written by MAL Rewrite]

Get ready for a second magical journey to the world of Someday's Dreamers, where spellcasting is a profession that requires both the proper training AND a license. It's to get that license and fulfill a promise made to her late father that young Sora Suzuki has made the long journey from her distant home in the countryside town of Biei to the big city of Tokyo. It's a daunting challenge, but she's got a little bit of talent, a charming personality and, most important of all, the promise of an internship! What she ISN'T expecting, though, is how different life in the city will be, especially the people themselves. While she gets along with the confident Asagi, Kuroda and the gentle Hiyori, she's completely confused with the mysterious boy Gouta. And yet, as a result of their internships they keep ending up in the same situations and slowly learning to understand more about each other than they ever imagined possible!