ข้อมูลอนิเมะSearching for the Full Moon

12-year-old girl Mitsuki Kouyama dreams of becoming a singer and of reuniting with her childhood friend, Eichi Sakurai. However, she has sarcoma, a tumor in her throat. A pair of shinigami, Takuto and Meroko, emerge from Mitsuki's wall, arguing and not realizing that Mitsuki can see them. They are surprised, but introduce themselves and explain that Mitsuki only has one year left to live.

Meroko and Takuto argue about letting Mitsuki audition. Mitsuki, Meroko, and Takuto talk about why she wants to become a singer. Meroko and Mitsuki go shopping, and then Meroko pretends to be Eichi. In the end, Mitsuki tells Takuto that she really does love to sing and it's not just for Eichi, and the two make up.

After a day of school, Mitsuki gets a call from Dr. Wakaoji. He explains that Mitsuki's new manager Masami Oshige wants to meet her at the hospital. However, Mitsuki will have to be in her 16-year-old form in front of the manager, and she'll have to be in her regular 12-year-old form in front of Dr. Wakaoji, with them both in the same room. Since telling the truth isn't an option, Meroko takes it upon herself to solve the problem. In the end, Mitsuki and the shinigami manage to trick them.

Mitsuki's debut CD is already being discussed by her producer, Mr. Takasu. Takasu wants her to sing a pre-written song for her debut, but Mitsuki wants to sing a song with her feelings in it. So, now Mitsuki has three days to write her own song.

Mitsuki's first job starts out rough because she worries about whether or not she's acting her age. But, after talking to three high school girls, she manages to get through the day, now reassured of herself.

Mitsuki and Takuto (pretending to be a doll) go to the studio to do a recording while Meroko stays at home, posing as Mitsuki. While Mitsuki learns what to do in a recording booth, a little girl named Nanami sneaks in and takes Takuto away. When Mitsuki finds them, Nanami refuses to give Takuto back.

It's time for Full Moon's first live performance! But when a girl from the past questions Mitsuki's abilities as a singer, she begins to doubt herself.

Full Moon's debut maxi single, "Myself," is now on sale! The good news is that it's a smash hit! The bad news is that no one at Mitsuki's school seems to be talking about the CD, and Mitsuki doesn't have any friends nor the confidence to spread the word about her single.

You'd think that since "Myself" is such a big hit, everyone must have listened to it. But, Mitsuki soon learns that Dr. Wakaoji has not listened to "Myself," and she really wants him to hear it.