In this novel, the author portrays the devil in a new light, appearing lonely, troubled, and desiring to share his sorrows with the protagonist. After thousands of years of tirelessly working to lead people astray, ignite wars, and destroy beauty, he finds himself unemployed. Humanity has surpassed him in committing unimaginable atrocities, becoming stronger and more eloquent than the devil in enticement and wrongdoing.

During the exploratory journey, the devil takes the protagonist to see the world in its true form, both inside and outside, in a way different from how it was depicted in books and stories.