Scylla Heart was born in the harsh world of Rupture, a First-Class Greater World orbiting the prime world of Riveria at the sixth distance. Riveria, the central hub of the alliance, is the most revered and influential world, with others measured by their distance from it. Rupture is notorious for its vast trenches and unforgiving terrain, situated on the sixth orbit from Riveria's right.
Rupture is a desert planet where water is as scarce and valuable as their unique energy—Dream Energy. Unlike Riveria, where the life force is called Sila, the people of Rupture harness Dream Energy, a force that can create wonders or bring nightmares. This paradoxical world, blanketed by endless sands, is home to surreal landscapes, where one might find a frozen island amidst scorching deserts or a molten lava island in the middle of a frozen wasteland.
