A girl inherits the weight of her entire world's history the moment she becomes conscious. A soldier sent to protect her represents the empire trying to erase that history. The collision between them is not romance grafted onto mecha, it's two incompatible futures grinding against each other, and neither one survives the pilgrimage intact.

Bellin Ajelli carries the accumulated memories of every Songstress who lived before her. On Carmine, a small colony world, these young women use what they inherit to help a population burdened by the strict policies of the interplanetary league that governs it. Having just become a Songstress at sixteen, Bellin begins a sacred journey across the planet. Talk of a potential terror plot leads the militaristic Donau Empire to send Prince Truhallon as her protector, though everything he represents runs counter to her ideals. The two could hardly be more unlike each other, yet they must remain together until they arrive at the capital. The film combines mecha, science fiction and romance.