I'm the Villain, but Can't I Quit?

I possessed the body of a villain who, driven by an inferiority complex, does something stupid and ends up being torn limb from limb by the protagonist. Since that fate was triggered by killing the protagonist's younger brother, I did everything in my power to keep the kid alive. Cleaning up the mess to ensure a smooth resignation was just a bonus. But how did it end up like this? “*Cough, hack…!*” “Mr. Han Cha-soo, I will take full responsibility for everything.” The protagonist has completely lost it. He says he can't let me go, as I am the benefactor of his life. “I shouldn't have left you alone.” No, I'm fine. So please, can you just let me resign? *** Work Introduction: * Set...