After perishing as the formidable Corpse God in an epic clash, a powerful necromancer is resurrected as Polka Shinoyama, a young boy in contemporary Tokyo. As he grapples with his new mortal form, he becomes the focal point of supernatural factions vying for his demise, including the spirited Misaki Sakimiya, who harbors a deep-seated animosity towards him. Amidst the peril of unknown adversaries seeking his end, Polka crosses paths with the adept surveillance and hacking expert, Takumi Kuruya, and the enigmatic Shinjuku crime lord, Lisa Kuraki. With the aid of these and other unlikely companions, Polka embarks on a hazardous journey to uncover the secrets of his rebirth and the impending destiny of his newfound world.