He was suddenly summoned to a different world and told to become a saint who would save the world.
You originally thought it was the old routine of killing monsters, upgrading, and defeating the devil, but the priest who summoned you actually asked you to fall in love with the big devil? !
Was there any mistake?
Originally you firmly refused, but the sudden appearance of the devil made you fall in love at first sight.
So the sweet daily life of the two begins!
Idea: How to fall in love with someone who is insecure