When Earth was attacked by Satan, all seemed lost until God sent His knight to protect His people. After the war, God's army prevailed, but it wasn’t over; demons began to emerge as Satan spread his power throughout the world. The demons fed on the evil of the Earth to survive and be reborn. So, God bestowed special powers upon every human, which grew with their faith. It was prophesied that Satan would be reincarnated in a human body, and that human was a poor boy named Mikel. After enduring immense suffering at the hands of the rich and losing his loved ones, Mikel must now undergo a transformation to better himself, hoping to change the world into a place free from corruption so that the demons can finally be eradicated.