Hanami Mei, who failed to die for the 501st time, clicked on a website that was rumoured to help people die. However, the path of leaving the human world was unexpected. As a result, Mei Mei and the God of Death, Tanatus, signed a contract and she became an agent of death. This is the story of Mei Mei, whose goal is to die, and the God of Death, who wishes to restore his original state. Two people with different outlooks embark on this journey of harvesting souls. Will the secrets of life and death finally be uncovered?