While grappling with the shock of his own demise, a writer faces a Grim Reaper who deems bad writing a sin. To redeem himself and secure a spot in heaven, he must outlive the ending of his novel 'The Demon King is Dead.' However, his luck takes a turn for the worse as he inhabits the role of the Demon Prince, a powerless character destined to perish right at the story's outset. Frustrated and desperate, he laments his ill-fated predicament.