At Bunzou High School, the arrival of new first-year students sparks an unexpected turn of events for Koshiyama Shiki. Reluctantly pulled into a rapid-fire quiz competition by the Quiz Bowl Circle president, Shiki, a reserved bookworm avoiding the limelight, finds himself out of his depth. However, his classmate Fukami Mari shines by anticipating and answering questions before they are fully posed. Witnessing Mari's skill, Shiki discerns a crucial moment in every query where the answer crystallizes with certainty.