The time-travel caused by an exam is not a soul time-travel, not a person's time-travel, but the whole class' time-travel! ! As high school science students, what we fear most is not English or Chinese, but physics. The unreasonable physics exam has dragged a group of people into the reincarnation of time. The most confusing thing is that the teachers have become the wise men and beauties of ancient times, princes and generals, and even the biology teacher has become a coroner. This makes us students born in the 90s feel very embarrassed. Nowadays, teachers are emperors, exams are king, and 20 years of tearful study are just for the sake of success. With a diploma, how can we show off the face of thousands of students in ancient times? After time travel, a group of people returned to the present in order to find the lost teachers and students. We embarked on a long journey. We are fearless about the road ahead. We go on with the mentality of not being defeated in the battlefield even if we fail in the examination room. What kind of footprints will be left in the distance? (This article is purely fictitious, if there are any similarities... Ahem, the possibility of similarities is very small, but the article definitely has no connection with official history, because my sister, I am a science student, and the teacher did not let me study history. Also, whether you are a soy sauce person, a dish soap person, or a small strong medicine person, come and step on it, you are not afraid of being stepped on - the author occasionally goes there)