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Chen Xiaoyu, an 8-year-old primary school student, surprisingly possesses an ultra-high IQ and top-tier scientific literacy. She took the college entrance exam, shocking the world! It turns out that she was a top female mathematician in Daxia forty years later, who suddenly died from overwork and was reborn into her 8-year-old self. The current Chen Xiaoyu lives a hard life. To let her grandfather live a better life and to make her scientific research achievements contribute to Daxia's development, she showed her mathematical talent and was allowed to take the college entrance exam by special permission. However, no one expected that she handed in a blank paper in the exam room. Just when everyone thought the "genius girl" was a lie, the world-class formula that Xiaoyu wrote on the paper caused a sensation and stunned the entire globe.