First-year high school students Kana, Reimi, and Hibiki are apprentices at the Karasuma Phoniatric Clinic, where the power of healing through song is combined with conventional medicine. One day when the girls' teacher is out, one of the clinic's patients takes a sudden turn for the worse. Is there nothing these apprentices can do to help?
I realize now that everyone's 
heart has something in common
أدرك الآن أنّ هنالك أمراً
متشاركاً في قلوب الجميع
Alle haben doch ein Herz.
Ora ho capito che i cuori di tutti
hanno qualcosa in comune
Percebo agora que o coração
de todos tem algo em comum
Я только теперь поняла, что
в сердце любого найдётся что-то общее.