The Doomsday Mystery: Hello! Help Save All Mankind!

[Not the Holy Mother] [Absolutely self-interested] [Decisive killing] Human beings have finally endured it, [Virus Sneak Attack] [Zombie Catastrophe] Mega EvolutionZerg Invasion Extraterritorial CivilizationAnother army is pressing down on the territory. "Please help me!" "Only half of the [Goddess Mecha Legion] is enough!" "I will never let your help go in vain..." "Okay! If you're annoyed, you can discuss it with Captain Tang!" After taking away the top human beings, Su Sheng fell into deep thought. The Zerg are just cannon fodder, and so is this extraterrestrial civilization. Who is the mastermind behind this? Why must we destroy humanity?