Akuma wa Rozario ni Kiss wo suru

People possessed by demons are robbed of their luck and are more likely to die from an unfortunate accident. One such individual is Yoshinaga Yukihiko who simply wants a peaceful life surrounded by friends and a girlfriend, but due to the spectral presence constantly following him, everybody he tries to get close to suffers the same misfortune he experiences. While returning home from school one day, a giant demon unexpectedly emerges, intent on taking Yoshinaga’s life. Fleeing the scene, he takes refuge in a church where he encounters a beautiful nun named Alicia Baal who, aware of the situation, makes a pact with Yoshinaga to exterminate the demon. However, what are Alicia’s true intentions in forming a contract with Yoshinaga?