Dark Doomsday: I Became a Master Architect

[Doomsday + the Myriad Worlds]

A mysterious mist descended, and spatial storms swept across the globe. All mechanical devices stopped working, while zombies, mutated plants, animals, and even insects began evolving at a frenzied pace.

The humans who survived were fortunate enough to receive inheritances, allowing them to evolve by absorbing magic crystals. Those who received no inheritance could improve their strength by acquiring strange abilities from other worlds. Mysterious Devil Fruits began appearing at random all over the world…

As portals to other worlds opened, all races vied for supremacy. Could humanity find a chance to survive in a world crowded with countless races?