During the last 98 days of his senior year, Liu Xuanxuan could suddenly see the countdown above everyone's head - that was the day they left school. Tian Wanxi, the quietest girl in the class, has a number "0" above her head, which means she is about to disappear. While everyone was sprinting for the college entrance examination, Liu Xuanxuan discovered that changing one's destiny requires dedicating one's own time.
