Thriving in the Beast World - Chapter 12 - Gaiyin2

Have you ever read a story? So stupid and senseless that it makes your blood boil and makes you pity even the villain of the novel. if you haven't that's fine because our protagonist did.“FROM WHERE THE FUCK DID NTR COME FROM?”He threw his console controller on the which did a cartoonish bounce and formed a bump on his forehead.------“Wait! What's this place!?”The moment he woke he found himself in a strange location never been visited by him ever before.------“No!! No!! No!! How the hell did I end in the body of this cucked villain! Why did I end up in this body!!”He lamented when looked at his face in the mirror that got beaten blue by the protagonist of the game.------“Don't worry, Riech. I will fulfill your and fucking kill the bastard and fuck his mother and avenge you!”He clenched his fist and gritted his teeth in anger vowing to take revenge.

Su Wan is a Realm Destroyer. She shuttles to different time-spaces using the identity of the “Cannon Fodder Ex-Girlfriend”, dedicated to plotting how to happily tear apart the male protagonist and the female protagonist. –There’s no such thing as protagonists who can’t be torn apart, only Ex-Girlfriends who don’t work hard enough~

- Description from Novelupdates

In a Fantasy world in which a young girl with the Divine Protection of the Hero battles against the Demon Lord. In that world, Red, the elder brother of that young girl Hero, possessing the Divine Protection of the Guide which only grants a high initial level, fought in the initial party of the Hero.

5 years after the world changed, the final boss appeared.