Oh! My God summary: Ma Ria is an ordinary office worker until one day, a god appears and fulfills her “earnest” wish. The god promises to stay by her side and grant her a single wish every day until Ria, who has no faith in mankind, learns to love humanity. But when the god grants even her unconscious wishes, a series of unforeseeable events occur—leading to death, disaster, and chaos. Will Maria finally learn how to love humanity or will she destroy the world in the process?