The Entire World Lost 90% IQ. Now I'm A Genius Because I Know 5+5!

Ye Xing has secretly admired the campus star for years, but a cruel setup by her and a wealthy heir leaves him humiliated in front of everyone. Just when all seems lost, a mysterious system activates—and the intelligence of the entire world suddenly drops by 90%. Ye Xing is the only person who remains completely clear-minded. What once seemed like ordinary math now looks like impossible genius. A respected professor quickly recognizes his talent and chooses him to replace the wealthy heir in a prestigious mathematics competition. But Ye Xing’s sudden rise makes powerful enemies nervous. At a gathering, he calmly takes on the legendary chickens-and-rabbits puzzle, stunning everyone around him. As jealousy turns into open confrontation, his hidden ability may finally be exposed. Can an ordinary young man survive in a world that no longer understands how brilliant he really is?