Doomsday: I Started with an Underground Fortress

When the apocalypse strikes, Han Xiaofan awakens with a mysterious crystal fused to his body and an impregnable underground base at his command. Armed with overwhelming power and unmatched resources, he'll carve out a sanctuary in the wasteland, gather survivors under his banner, and forge a new civilization from the ashes of the old world. In this brutal new reality, only the strongest survive—and Han Xiaofan intends to rule.