Evulz is an Unreliable Narrator who really is a villain, but has been trying to paint himself more sympathetically.
Evulz starts the story by beating up the narrator and taking his protagonist-hood via Hostile Show Takeover. The entire rest of the story concerns Evulz abusing his narrator privileges to turn the narrative into a bad case of Her Code Name Was Mary Sue, while the Bob tries to break free from the story and boot Evulz out of the narrator seat.
The writer wants to make a story where the main character is a bad guy who gets defeated at the end so we can see the rise and fall of a villain.
The writer wants to make the villain the main character for the audience to relate and identify with.
Emperor Evulz: "Admire me? You fools. Do you not know that I'm the villain of this tale."
Invoked: The land was taken over by the Forces of Goodness long ago; what with there being no more conflicts, the only way the story can have anything to do is if it follows up-and-coming wannabe Emperor Evulz on his path to upsetting the status quo.
Defied: Evulz begins the story by ensuring us all that he is the hero, and this will not be one of those 'follow the villain stories'.
Discussed: Evulz and Bob have a discussion over the traditional narrative roles of hero and villain, and note that so far Evulz has been the one to go through the traditional hero's journey even though his goal is the evil one.
Conversed: Evulz and Bob are watching a show where the villain is the main character, and have the above conversation.
Deconstructed: Having Evulz in charge does in no way lessen his villainy, causing the whole story to turn into a serious case of Black and Gray Morality where the distant and ineffectual heroes have no connection to the audience and the only people given care and attention are unsympathetic and evil. All the events that would normally be Offscreen Villainy in a traditional story gets described in livid detail, showcasing just how horrible villains are in such stories and how many lives get lost while the heroes tarry and go through their personal flaws and demons.
Reconstructed: When the heroes finally turn up, they turn out to be good and nice people, even as Evulz's viewpoint tries (and fails) to paint them in an unflattering light. Evulz eventually gets defeated in a traditional fight in the climax, with the final chapters being him lamenting his position from inside his Tailor-Made Prison and swearing eternal vengeance as goodness and light falls across the liberated land once more.