A fantasy world full of monsters. As the balancer between humans and monsters, the demon master once shouldered the important task of maintaining world order. However, with the changes of the times, the status of the demon master gradually declined, and many powerful demon masters chose to retire, and Lu Ping'an was one of them. He was once a top magician, but now he works the night shift at a convenience store and leads an ordinary life. And his niece Jiang Xiaoli, although she is an ordinary high school freshman, has special abilities, can see monsters, and has unique fighting skills. In this world, monsters coexist with humans. There are both good monsters and evil monsters. Their existence brings various challenges and crises to human society.
