Gatekeepers

Some years into the future, a strange, unexplainable natural disaster has broken off a piece of the Japanese mainland. Known as the Lost Ground, it is now inhabited by people with Alters -- machine-like extensions of their own will. In order to keep the peace on the Lost Ground, the HOLY organization uses its own Alter capabilists to police the region. In the midst of the chaos is a young man named Kazuma, whose life will soon change forever as he discovers his hidden abilities, and how to wield them.

Under Tokyo there is a city where select people have a naturalability to control the elements. But when an uprising takes place,Chelsea Rorec helps Ruri, a mysterious girl known as the maiden oflife, escape from this secret world. Together, they stumble upon Asagi Rumina, a man who becomes determined to protect Ruri from those who pursue her; though unaware of the power he's up against, the task will prove difficult to say the least. Now, with his newfound powers to control the wind, Rumina must save Ruri, theunderground and the surface world from ultimate doom.

Guided by a star only they can see, a group of maidens known as HiMEs have begun to gather at Fuuka Academy. These young women have been endowed with dangerous supernatural powers that they can use to their heart's content, but there's a price: to wield them, they must put their most important thing on the line. Now, in the midst of school work and friendships, they find themselves caught in the midst of strange conspiracies seemingly related to the terrifying monsters that attack them. Is the power of the HiMEs strong enough to save themselves and the ones they love?

At the end of the 20th century a fierce war raged between the Monsters and the humans. The outcome was devastating for humanity -- as the Monsters had won -- and thus a new era of Monster-ruling began. These Monsters feed on children and can turn any human who sees them into either a puppet or stone -- except for the Melos Warriors who are the only ones able to fight them. Meet Bokka, a young aspiring Melos Warrior whose only goal is quite simple: to save the Melody of Oblivion and vanquish the Monster King, once and for all!

Years after having been exiled from the Kannagi household for being unable to utilize their fire magic, Kazuma returns to Japan, only to discover that the Kannagi family's very existence is threatened. Unknown to them, during his absence, he had become a Contractor and thus acquired a vast strength in wind magic. Not showing any remaining contempt for them, he offers to help solve the Kannagi household’s problems in return for large sums of money. Together with his younger brother Ren and the feisty heir to the Kannagi household, Ayano, he fights to protect those he cares about... for a price!