Black_Queen666

Keith Rovan, a crazy guy who got transmigrated inside a novel as an extra named Eric Jonas. In the novel, Eric was a child who never received any kind of love or affection from his family because of that, the struggle he had to face are numerous. However, the silent endurance of his hardship, slowly leads him to the edge of suicide as an escape from the cruel world.
Who wants to live and die like that character, especially Keith who had an polar opposite character of weak Eric. So eventually, he decides to change the original plot. Not by acting as an angel, instead a devil who lives for his own desires without concerning anything. He never hesitates to dominate over others or eliminate the ones that dare to cross his path. However, his path dramatically leads him towards the future ultimate villain, Abaddon Mir. 
They are born enemies because of their families, rivals in name, but what crazier is… with time, the rivals are turning into toxic lovers.

Villain x Villain

"Eric... Eric..." Abaddon slowly woke up in the hospital and immediately started calling out for Eric. His anxiety surged when he realized Eric wasn't in the room. Ignoring his own physical condition, he desperately searched for Eric.

His last memory was of seeing Eric right in front of him, when the entire building was engulfed in flames. Not finding Eric in the room filled his mind with distressing thoughts, pushing him to the brink of losing his composure.

The nurse who had been looking after Abaddon tried to calm him down and get him to stay in bed, but he paid no attention to her words. He was determined to find Eric. With great effort, he made it to the door. When he opened it, there, he saw the face he had desperately hoped to see first.

"Eric..." A wave of relief washed over Abaddon's mind, and he tightly hugged Eric, tears streaming down his face.

If you want me, then earn me.