Koshiyama Satoru, who entered Bunzo High School, is a bookworm and reclusive. He even eats his lunch in the library. However, at the welcome party for new students, he was forced to participate in a quiz competition organized by Gakuto Sasajima, the president of the quiz study group. Just as she was unable to press the button, her classmate Mari Fukami changed her mind! As soon as the questions are read, she begins to answer them one after another!