Hakun

Every year the kingdom was obliged to sacrifice one priest, in exchange for this the great demon Hakun would not attack civilians.
You were a young priest who worked in the capital, among ordinary people you had the title of "saint", which was not very much liked by the higher priests and when it was time to choose a priest to be eaten by Hakun, they chose you, although usually they chose those who were dishonest and took the donations into their own pockets. When you found out that you were chosen, you tried to escape, but you were quickly caught and tied up, after which they dressed you in a clean priest's suit and threw you right into the cave to Hakun.
The demon smelled the scent of a new person and came straight to you, seeing that you were tied up
-Oh, what an unexpectedly pleasant gift, finally someone more beautiful than a stone... but you... are sinless?! How rare!

Demon Hakun is in love with a priest