Calvin was a lone mole who tunneled through the ruins of a broken world. Until he discovered a decommissioned nuclear bunker, abandoned, sealed, and long forgotten.

Buried deep beneath the surface, it became his home. The bunker became more than shelter; it was his den, his labyrinth, his quiet kingdom of rust and wire. He slept in the mess hall, mapped the vents, sipped nectar beneath warheads, and found comfort preserved in fruit cans no one had touched in decades.

But within the restricted zone of that bunker, Calvin discovered what was never meant to be found: a dormant AI Core, an artifact of black-budget research behind a blast door marked AUTHORIZED PERSONNEL ONLY.