Synopsis
Kouyama Mitsuki is a 12-year-old girl who loves to sing, and wants to become a singer someday partly because of a promise she made to a friend, Eichi-kun, who was leaving for America. Mitsuki promised that the next time they saw each other again, they would have fulfilled their dreams: he as an astronomer, she as a singer. Unfortunately, Mitsuki has a malignant tumor in her throat, making it impossible to sing or even talk loudly. And her grandmother forbids her to sing or even go outside. Yet still, Mitsuki lives with the hope that she will one day fulfill her dream.