I Reincarnated in Another World and Became the Acting Demon King

An accident left me decapitated. With my dying breath, I made a wish: "I want to live again."

When I opened my eyes once more, the woman in the mirror had hair down to her waist and was as beautiful as a celestial being. People called her "Lord Demon King."

For some unknown reason, the previous Demon King had suddenly disappeared, and through a twist of fate, I became the acting Demon King.

Watching everyone around me bow in submission, I wonder: did I turn misfortune into fortune, or leap straight into a pit?