I never imagined becoming a Demon King inside a novel. Worse yet, I didn't inherit the Demon King's power, leaving me incredibly weak. On top of that, I must face the protagonist in the future, knowing he is determined to kill me because of his hatred for demons. Now, I'm left with two choices: either I grow stronger and take down the protagonist to survive, or attempt to befriend him against all odds.

However, that's not the point because my real goal is to live a peaceful life without any conflict, but as a Demon King, that seems impossible to avoid. Ah, dammit! Just thinking about it already stresses me out! Whatever! My life comes first, so I'm going to do whatever it takes to stay alive!