Gu Fan has been back to school for two months now. Besides school, occasional dates with Lin Xi, and boxing training, he has not participated in any other activities. He is wholly focused on getting stronger. He absolutely does not want to be the next one who disappears.
There are people who, once they make a decision, immediately take action. Gu Fan is that kind of person. He puts effort into everything he does, and persists, hence often making quick progress.
However, these two months have been calm and peaceful, with no unpleasant incidents happening. Gu Fan started to wonder if the previous disappearances of three of his classmates were just coincidences, and there wouldn't be a fourth disappearance.