The school boy Lu Yu, who appears to be a scumbag but is actually a genius, deliberately failed to score in the exam in order to escape the elite education arranged by his family. The new transfer student Su Wan looks cute and easy to bully, but he is actually the hidden National Mathematical Olympiad Champion. When a scumbag student meets a hidden boss, a sweet contest begins about "who will lose his vest first?" Unfortunately, the teacher arranged for the two of them to provide "one-to-one support" - she helped him make up for his lessons, and he helped her to prevent her from having bad luck. Lu Yu: I pretended to be a bad student for the sake of freedom. Why don't I want to pretend now?