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Prior to the events of the series, mankind waged a battle of survival against the shadowy creatures of the Grimm. Then mankind discovered the power of Dust, which allowed them to fight back against the monsters.

One fateful day, all of humanity was petrified by a blinding flash of light. After several millennia, high schooler Taiju awakens and finds himself lost in a world of statues.

In a lost age the world is divided into four equal powers: Water Tribe, Earth Kingdom, Fire Nation, and Air Nomads. In each nation there's a group of gifted people known as Benders who have the ability to manipulate their native element using martial arts and elemental magic.

A web-series anime by Rooster Teeth about four girls who start attending a school for raising Hunters against the Grim and other threats to the fragile peace of the world. Generally considered to be the first "'anime-styled' anime" of the west to go to Japan.