12 year old Mitsuki wants to be a singer because of a promise she made with her childhood love, however a form of throat cancer is holding her back. One day she find two strange characters in her room, Takuto and Meroko, who are gods of death. She finds out she only has a certain amount of time to live, and wants nothing more in that time then to become a singer. The two shinigami show sympathy for her, and decide to help her reach her goal by transforming her into a 16 year old girl.