Shadows Within Crystals (Jeongcheol with a twist)

In this universe, every soul is bound to a crystal each uniquely tied to its human. The most common crystals, softly shaded in pastel hues, are carried by every citizen. But each person holds only half. Their missing half rests with their fated partner, the one chosen by destiny. That is how the world has always worked.

But some crystals are different.

Forged over a thousand years ago with a singular purpose: to protect the world. These chosen crystals carry ancient souls...souls who lived, died, and reborn whenever the balance of light and darkness is threatened. And when they return... Cinnabar awakens.

Unlike the others, they were never meant to die. They were made to live forever-to shield the world from the coming dark.

Each of these rare crystals bears the name of their destined soulmate, etched by fate itself. And no matter the distance, no matter the chaos destiny always finds a way to reunite them.

Yet in the echoes of time, something changed...

What caused them to vanish? How did they become mortal when they were meant to be eternal? And why did Cinnabar disappear with them?