In a world where people are sorted since childhood depending on the results of their exams, only those who excel in education obtain happiness. Learning Types (those who prioritize study) and Cheating Types (those who prefer to climb the educational ladder by cheating) occasionally cooperate with each other, but there exists a great rivalry between them. The story follows C Type student Shokatsu Mumei and L Type student Ou Koui who struggle together to pass tests.