On the continent of Polyphonica, spirits manifest in reality by feeding on human-crafted melodies and cohabiting with them. Though not a frequent occurrence, some spirits hold considerable strength, able to take on humanoid or animalistic forms and engage in daily life with humans.
In this realm, the prestigious Dantists hold a great honor, playing the exclusive Commandia music and striking contracts with influential spirits. The tale of Shinkyoku Sōkai Polyphonica Eternal White centers on Snow Drop, a devoted maid who places all her care in her esteemed mistress, and her partner: the renowned Contra Bass, Eternal White, known also by the name Blanca, who serves as Snow Drop's Contracted Spirit.
