From the Vatican: God's Exorcist

200 Fallen angels, exiled underground, beneath the surface of the earth. God injected his divine power into the scepter and Solomon's ring, sealing the gates of hell. Thousands of demons are ready to break through the barrier and wreak havoc in the world. Alan Dante is just a priest of a small monastery, but various mysterious and strange cases have occurred recently, destroying his original comfortable and ordinary life. As a priest, he had to fight side by side with the priests of the Church Judgment Office to drive away the seventy-two demon gods from hell and protect the peace of the world. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.