From the publisher:
The once-majestic civilization of Elysium, known for its advanced knowledge of arcane arts and mastery of elemental magic, faces a cataclysmic event that shatters its cities and scatters its people across the land. In the aftermath, two distinct nations arise from the ashes: the Kingdom of Solstice, a civilization built around the worship of fire and the sun, and the Dominion of Nocturne, a society that embraces the darkness and draws power from the mysteries of the night. Amidst the ruins of ancient Elysium, a group of explorers from Solstice stumbles upon a legendary artifact known as the Heart of Aether. Crafted from a rare crystalline substance and said to hold the essence of the elements themselves, the Heart is believed to possess untold power and is coveted by both Solstice and Nocturne. As news of its discovery spreads, tensions escalate between the two nations, each vying to claim the artifact for themselves.
As fate would have it, your path crosses with a group of Solstician explorers who are on a quest to retrieve the Heart of Aether.