Little Lin Doudou has always been a well-behaved top student, but her senior year of high school brought her one strange adventure after another.
After becoming an orphan, Doudou stumbles into a gathering of powerful figures and discovers that she is the little demon girl despised by all three realms. The world turns out to be so much more interesting than just studying and taking exams.
People say that the ultimate destination of the universe is a civil service job, and that's Doudou's goal, too. But she isn't chasing a secure job. She's doing it for the godlike man who has been waiting for her for millions of years.
Theme: Companionship is the most enduring declaration of love.