is a Japanese manga series written and illustrated by Arina Tanemura. The manga was serialized in Shueisha's shōjo manga magazine Ribon from January 2002 to June 2004 and collected in seven tankōbon volumes. The series was adapted into an anime television series produced by Nihon Ad Systems, which ended before the manga was completed, as well as an original video animation distributed through Ribon. The anime series was broadcast on TV Tokyo. Viz Media acquired English distribution rights to both the manga and the anime, with the first 28 episodes of the anime released. Plot Twelve-year-old Mitsuki Koyama dreams of becoming a singer to reunite with her first love, Eichi Sakurai. However, she is afflicted with sarcoma (a cancerous tumor in her throat), which affects her ability to breathe well and sing loudly. Her tumor can be cured only through a surgery that could damage her vocal cords. At the same time, her grandmother hates music and is completely against Mitsuki's wish to audition. Mitsuki's dreams seem impossible to achieve until she is visited by two shinigami, Takuto and Meroko, whom only she could see. Takuto and Meroko inadvertently tip Mitsuki off that she has only one year left to live. Later, Mitsuki realizes she cannot wait any longer to fulfill her dream, so she runs away from home and the shinigami to try to audition for a singing competition. She moves Takuto to agree to a compromise: if Mitsuki promises to go quietly when her year is done, he would help her become a singer, so she could leave the world with no regrets. Takuto gives her the ability to transform into a 16-year-old, so that she could meet the age requirements of the audition and sing without hindrance. Mitsuki wins over the judges with her excellent voice and her enthusiasm for singing, sealing a contract with Seed Records. To conceal her true identity, she chooses the stage name "Full Moon". Characters Main characters Mitsuki is a 12-year-old girl who dreams of becoming a pop singer, but she has a tumor in her vocal cords which restricts her ability to sing. With Takuto's help, she transforms into , a 16-year-old idol, completely cancer-free and able to sing. Mitsuki eventually learns that Eichi died after leaving to move to America, and despite being distraught at first, Takuto helps her cope and realize that she must live her life to the