Villain: Clinging to the Empress’s Favor, I Crush the Protagonist at Every Turn

[Villain, System, transmigrate into a book, fantasy, leveling up, power fantasy]

Ji Dong transmigrates into a book and becomes its villain.

Now that he's bound to an invincible System, how could the fated male lead possibly kill him?

The smart move is to cozy up to the reborn female emperor and let his wife lead the charge all the way to victory!