After waking up in another world, Su Chen opens his eyes to a post-apocalyptic world full of danger. He thinks he is doomed from the start, but unexpectedly awakens the Red Alert System! Well, there's only one thing to do: get building! Even Heaven is on his side! An army of conscripts is ready to roll out. But what happens when energy runs low? There's a mutated beast on the back mountain wearing suspenders and breathing heavily, supposedly called the Kun-Kun Mutant Beast. What if it's too powerful to defeat? Just turn it into a beast girl! Then begins an era of massive construction. Yuri! Tanya! And why is there a bald guy, too? What do you mean I'm supposed to become the overlord? Oh, come on, you're making things so difficult for me!