The day after the proof was finished. The hallway of Asahi High School smelled like after-school. Rubber from indoor shoes. Leftover scent of half-eaten bread. Outside the window, the ground-cleaning duty dragged a broom across the field with a scraping sound. Fuutarou lined up five answer sheets at the end of the hallway. Ichika. Nino. Miku. Yotsuba. Itsuki. One by one. Checking. Math test. Perfect score: one hundred points. Failing line: thirty points. Ichika——thirty-four points. Nino——thirty-one points. Miku——thirty-three points. Yotsuba——thirty-six points. All of them. Barely passing. Just barely hanging on. (Not bad. Two weeks to get here.) He looked at the next sheet. Itsuki——twenty-eight points. The number written in red sat there. Silent. ＊　＊　＊ Evening. Twenty-second floor of Grand Casa Minase. Five answer sheets lined the table. Ichika saw her own sheet and pressed her lips together slightly. Thirty-four points——passing, but nothing to praise. Miku stared at her p