The Calcite name is well recognised across Uji. From its place in the Upper Region's Atelier Yard, Calcite Textiles produces many of the distinctive fabrics and fashions worn throughout Uji. Yet siblings Astoria and Arran Calcite, though related to the family behind the business, spent their earliest cycles estranged from its prominence.

All that changes when a sudden turn in their family’s fortunes facilitates a move from the Lower Mid Region to the Upper Region. However, despite experiencing the textbook social ascent Korainians are taught to aspire towards, the siblings respond differently to their new environment.

Arran, a child prodigy of the horizontal harp, gains special admission to City Korai Academy — an honour he did not seek out. Meanwhile, Astoria continues her schooling in the Mid Region (much to her frustration) but finds delight in her Upper Region home and neighbours.