This is the story of Roy Timothy and his friends who wants to become a top rank vanguard.
When he was a kid, he challenged his older brother about proving God(s) and Sky warriors is not exist meanwhile, Jack still proving to his younger brother that God(s) and Sky warriors is exists despite without having an evidence. Their challenge took five years until one of them looking for their path on their dreams.
Roy Timothy and his friends will be taking this journey by fighting evildoers and terrorist of the world. Serving the Vanguard Kings of the different countries is the main task of the Vanguard.