Harry Potter: Returning from Hogwarts Legacy - Chapter 2: Admission Notice

Some say reincarnation is a blessing, but for me, it's a dreadful curse. Cursed with endless reincarnation, I've been reborn as a villain 137 times. And all 137 times, I've been toyed with and killed by heroes who are far more cruel than the said villains... If I can't win no matter what I do, then I'll crush those so-called heroes at their very roots. - Quality Fan Translations, Made by Fans for the Fans - Villain Takes Over The Academy

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.

I Became Hades, the God of the Underworld from Greek and Roman Mythology

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.