In the realm beyond death, bureaucratic paperwork and malevolent forces abound. Meet Tsuzuki Asato, a carefree 26-year-old shinigami tasked with maintaining the balance between the living and the deceased. Despite his 70 years of experience, he finds himself stuck in the least desirable division with meager wages and a history of incompatible partners. Enter Kurosaki Hisoka, a 16-year-old partner who challenges Tsuzuki with his sharp wit and guarded demeanor. Together, they unravel the mysteries surrounding the enigmatic serial killer, Dr. Muraki Kazutaka. As their bond deepens through each investigation, Tsuzuki's haunting past resurfaces, threatening to disrupt his newfound connection with Hisoka.