Doomsday Summoner: I Really Don't Want to Die

The end of the world is coming, space is shaking, and countless gaps leading to different dimensions are opening on the Blue Star. For a time, vast armies of Zerg, Zombie, and Demons are sweeping across the place. Lin Hua accidentally "awakened" the summoning ability. With special sacrifices, he could summon aliens from various planes for his own use. How far is the road to reviving civilization...