About a world that's secretly under attack by an unknown threat. Unbeknownst to many, different kinds of creatures enter the supposedly normal world in pursuit of knowledge and technology above theirs, and ultimately, attain grand conquest. The apparent saviors and protectors of this world, who also lives in absolute secrecy, deal with these enemies of the world behind the scenes. Niko, Cecile, and Mark. Three childhood friends obtained a power someday in their lives and grew quickly accustomed to it. As they become aware of the community they belonged, they learned about the use of their impressive and unique abilities. To help, to reach, to inspire, -- to destroy. This is the story of the enigmatic heroes of Earth.