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

Days passed, and Eric gradually returned to his routine.He could now move around the house on his own, walking without support. Though still not at full strength, the worst had passed. Servants often cast curious glances his way—whispers followed in his wake—but none dared approach him directly.

"I can't live like this…" Eric finally burst out, his voice echoing off the walls. "How many days has it been? I need fresh air. Take me outside—or I swear I'll go on my own."

Aiden, who was busy tidying the room, looked up with a frown. "Can't you be patient for a few more days? Once you're fully recovered, you can go wherever you like."

"No!"Eric's tone was sharp, absolute.

Eric met Abaddon