Until that day, hundreds of thousands of people around the world simultaneously received a five-second mental image of an upside-down city suspended above the clouds. Governments claimed it was a collective hallucination, but only Sun Boda discovered that the street sign in the city in the image was exactly the same as the license plate number of his electric vehicle that he had just lost last month.
At the same time, an alien civilization calling itself the "Weaver of Order" descended on Earth. Instead of sending troops, they threw out a civilization trial agreement: humans must complete the "seven logical paradox levels" designed by them within thirty days. For each failed level, a city will be randomly wiped out from the world. There was no smoke, no negotiation, just one seemingly unsolvable intelligence test question after another.
The global elites were solving problems, but Sun Boda discovered that his nonsense "slang logic" was the only thinking mode that could find loopholes in alien rules. He took the first step amidst the sneers of international think tanks, but unexpectedly discovered that the alien messenger ZX-7 showed strange interest in human beings' "irrational expressions".
Until the seventh level, Sun Boda discovered that the questions of all levels pointed to the same core: Is human "emotional redundancy" a loophole, or is it fuel for alien starships? And that alien messenger has been leading him towards a wrong answer that will surely destroy mankind.
Thirty days, seven questions, a man who said "drawing the salary from the bottom of the cauldron" instead of "drawing the knife from the bottom of the pot". While everyone was looking for the correct answer, he decided to let his enemies revise the test questions himself.
