Bastile is a powerful primordial demon that came from a world where dungeons and dragons were his life. After losing a loved one, he caused a calamity and lost all his friends.
He soon ended up in the modern world and even after so much time to reflect on his choices, he's making the same mistakes he made in the past.
A deer who glows as bright as the Sun suddenly gets in the middle of his love shenanigans.