Toaru Majutsu no Index - Volume 15, Chapter 3: In the Land of Sealed Powers. Reformatory.

He married the daughter of the Lancaster family purely for revenge. He expected her to be obedient and submissive, not to resist or show emotions—a perfect pawn in his plan for vengeance.However, when his gaze locked onto the third daughter of the Lancaster family, the one who barged into the living room was her—disheveled and stained with blood. She seemed ordinary, but beneath the surface, she hid an unknown sharpness.“Do you love me?” he asked coldly.“You're crazy!” she rolled her eyes in disdain.In that moment, he smiled with satisfaction, believing he had everything under control.But she fought back. Marrying him was merely one step in her own plan.Four years later, with the Lancaster family completely destroyed, she threw the divorce papers in his face, smiling like the final victor:“Albert Wilson, have you finished using me? Thank you for making me think I once loved you. Now, never see me again, even in death.”Just as she turned to leave in triumph, she accidentally walked into a gang's arms deal, and an explosion forever separated her from him.It was only when he found the two-month pregnancy test result among her belongings that he realized he had lost the only salvation of his life.

The daughter of a duke, the stuttering Maximilian, married a knight of lowly status at her father’s coercion.

When the sword awakens, its slept so long that it has forgotten everything but hunger. It is a weapon made to feast on death and blood, and the more bodies that it leaves in its wake, the stronger it gets. Bloodstained Blade is a fantasy gamelit, where the main character is the blade, and not the person wielding it. So, expect the wielder of the blade to die occasionally and be replaced with another man or monster as the Ebon Blade pursues its own goals no matter the cost. Expect: Daily updates, new powers and abilities, numbers to go up, violence, and revenge.

You thought being reincarnated as an extra-side character was bad? Imagine being thrown into the body of a villain who is disowned by his own family and discarded by the author.