Deity

A young boy name Thomas, and his bro Eiji want Thomas to be his successor or be his "Right Handed Partner" to travel around to west. but Thomas didn't want to because of "Adam" is heading toward the earth. many "Demons" arise from their Hell or Purgatory thinking Adam is on their side, meanwhile God decided to protect the earth by giving blessing to humans with their power. God himself seperate his divine magic by giving to 12 apostles or called "evangelist" around the world. so as the stories goes Eiji wants Thomas on how to rely on himself once he was gone.