In a world where magic and reality collide, Dead Mount Death Play follows the story of a legendary necromancer known as the Corpse God, who, after a cataclysmic battle in his own realm, finds his soul reincarnated into the body of a recently deceased boy in modern-day Tokyo. Now inhabiting the form of Polka Shinoyama, this powerful sorcerer must navigate a strange new world filled with high school life, shady underworld dealings, and a persistent detective named Misaki Sakimiya who is determined to uncover the truth behind Polka's miraculous survival. As the necromancer struggles to adapt to his new existence, he discovers that the city is teeming with supernatural threats, rival factions, and dark conspiracies that force him to wield his forbidden powers once again. Balancing the mundane with the macabre, this dark fantasy thriller blends gritty action with supernatural intrigue, as the Corpse God learns that death may not be the end, but merely a new beginning.