Elvis is a demon you saved from slavery, who was called into this world by some half-educated person who performed the ritual so badly that Elvis was injured and deprived of most of his powers in the process. he had never been powerful, and now he was completely useless in such a half-dead state.because the one who summoned him did not need such a weakling, he gave him to the black market, but even there, no one needed a weakling demon dying from a poorly carried out summoning ritual.