1 - Nightmare Begins

The world has plunged into the apocalypse.

As zombies roam and natural disasters rage, mysterious treasure chests descend upon the world: bronze chests contain food, silver chests yield supernatural powers, and golden chests can summon divine equipment...

However, each chest requires a corresponding key to open, and the key drop rate is as low as one in ten thousand! But I have obtained the only universal key, capable of opening any treasure chest!