Shinkyoku Soukai Polyphonica - Eternal White

神曲奏界ポリフォニカ　エターナル・ホワイト

Polyphonica is a world where spirits and people co-exist. Snow (スノウ) serves the dantists of the Granado family, however their "commandia", which gives the spirits strength, has been waning in each generation. What does fate have in store for her?