The Dying Hero

"Whoever kills the Demon King will become the King of the World." Aaron followed this oracle that was passed down at an unknown time and stepped into the place where the Demon King was. After he defeated the devil and met the gods, he discovered that everything was just a scam created by the gods. The title of the book is "The Hero at the End of the World", also known as "I Don't Want to Be an NPC Here All the Time", "About That I Was Possessed by a Ghost", and "Defeat the Demon King at the Beginning, and Then Was Exploded and Killed by the Gods". It is a light Western fantasy, not a cool novel, has no system, no harem, no realm advanced settings, and is not an invincible flow. There are golden fingers.