Apocalypse: The White Moonlight Became a Possessive Mad Dog

[1v1, both are virgins, HE (Happy Ending), the protagonist transmigrates, the male lead is reborn, incredibly satisfying]
[A seductive, unwitting bottom × A possessive, dark, and mad dog top]
Su Han transmigrated into a book, becoming a minor character in a post-apocalyptic angst novel, and was bound to a system called 111.
In the original story, the male protagonist has a tragic background and is betrayed by thousands of people.
In order to survive, Su Han must change the plot and prevent the male protagonist from turning evil and destroying the world.
Anyone who bullies the male lead, he'll beat them up! Anyone who betrays the male lead, he'll kill them!
Those who make the male protagonist suffer will all be slapped hard by him.
However, by the time Su Han realized something was wrong, it was too late.
Where's the pitiful male lead I was promised?
The male protagonist is paranoid and gloomy; he's clearly a mad dog that kills anyone who touches him.
And the way that mad dog was looking at him was weird!
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1. An old-fashioned post-apocalyptic setting with superpowers, lacking any logic.
2. Neither the main characters nor the protagonists are saints; all the villains are completely brainless; it's pure, enjoyable gameplay.
3. You can criticize the writing if you think it's bad, but the author won't listen.