Building a Villain Organization in Another World

Being born into a wealthy family was not a blessing for Keita Kagayama. Rather, it was a curse that forced him to live in constant, overwhelming boredom. At least, that was how it used to be, because now, by some miracle, he was able to enter his own novel when he got into an accident. 'Is this a blessing? From any angle I look at it, this is a blessing. What percentage of people can enter their own novel? Almost zero, or maybe I'm the only one who can. Of course, that's because I was chosen for this.' Feeling superior with his status as the Author, Keita intends to take all the rights of the Protagonist/Antagonist of his novel to strengthen himself so he can rule that Fantasy world for his own satisfaction. But what Keita doesn't know is that this world no longer belongs to him, and the Author status is no longer relevant... === A/N: Some of you might not like the MC's personality, which is extremely narcissistic and views everyone around him as NPCs/Extras who must bow to him. But that is his character, who always feels privileged, especially since he also keeps getting lucky in that world. But that won't last long, he will get a very satisfying character development. Although it took a while. The story's pacing is so fast at the beginning that some world-building gets overlooked. However, this slows down as the story progresses, and some unsaid details emerge.