Monsters Arrive: Start with an Underground Shelter

When I wake up, the world has changed. Countless monsters are coming. Humanity can only survive. But Su Gan activated the shelter system. Start with an underground shelter! Recruiting employees. Development power. When others are still scared to hunt a monster. When being cautious in order to obtain wild resources. Su Gan's refuge has been strengthened. Launched an attack into the dangerous wilderness! … When the glorious sanctuary is revealed to the world. Everyone was shocked!