"Hidden Adversary" is a story of a world of heroes and monsters hidden in the deep shadow of the earth. Various species of such beings that have not been found,waiting for its time to destroy mankind take back what is theirs. People all over the world have witnessed people with special abilities and share it through the media of social networking site "Utube" and "Popbook". Nobody believed the existence of such beings and the people that were caught on camera some claimed hoax and some claimed it true who knows? until monsters,devils,mysterious creatures slowly appearing in the world tormenting the existence of humans not until a 15 year old boy named Takoshi Kouno with other humans with special abilities appeared at the surface of the earth.