The Energy Conservationist's Rollback Manual: a Better Tomorrow

On the day of the "Great Advent", the barrier between the spiritual world and reality shattered, source energy poured into the human world, and magic became a subject written into the curriculum. The nine major colleges of Tianhua Academy are the most prestigious and dangerous cradle of the new era - classrooms, clubs and leagues during the day, and heretical commissions, restricted areas and gaps in the spiritual world at night. A group of newly awakened teenagers met here. They originally wanted to survive until graduation, but were pushed into the chess games of six continents and the truth buried in the "Great Arrival" by fate tests one after another. This is the daily life of a group of students, and it is also the epic of an era.