The Scholars' Revolution

Top student Lana Ainsworth and her friends are transmigrated into the past by an earthquake, where she becomes a failing student. Her stepmother tries to force her to drop out and marry. She discovers her classmates are her transmigrated friends. A malicious stepsister steals her exam questions? She uses a chemical reaction to turn the paper blank. She builds a harvester. She aims for the highest honors, overthrows a dynasty, and helps a new emperor ascend.