Inside a brightly lit room, a brutal scene was unfolding.
A young boy that was no older than eighteen, was repeatedly being crushed beneath a massive, jagged rock which was suspended from the ceiling.
Each time the rock slammed into him, it left behind nothing but mangled remains, flesh and blood being scattered across the ground like debris.
But then, something astonishing would happen. From the ruins of his body, cells multiplied at an impossible rate. Skin, bones, muscle, all reformed in perfect symmetry, and within seconds, the boy stood whole again, his aura just a bit more powerful than before.
The process repeated. Over and over.
The rock rose, shifted, and crashed down again. Each time it changed—its edges sharper and its heat molten. It reduced him to nothing but a single arm. Yet in moments, that arm grew back into a flawless body.