The demon Kaisel, who has spent his day to day bored, suddenly hears a priest, who came looking for him, spout this nonsense : "Let's get into a relationship".
Kaisel's interest being aroused by the priest, who has no knowledge of sexual intercourse despite his strong ambition to lose his virginity, he tells him that he'll teach him every single thing step by step...
"A priest falling from grace is a good thing for me so..."
"I'll sacrifice my body to grant your wish."