Starting from Returning to School at the Age of Forty

When he woke up, Lu Feng, who had graduated from college two and a half years ago, found that he had appeared near his alma mater a hundred miles away, and he had jumped directly to the age of forty. Under the control of mysterious forces, old classmates who have already started families and started businesses, no matter whether they have free time or not, even if they are past the age where they need to hold a diploma to find a job, return to school one after another just to make up for one course. Is it an illusion, a dream, or parallel time and space? Lu Feng couldn't figure it out. He only knew that his former loving girlfriend was already the mother of two other people's children, and he was still alone... Just when Lu Feng was resigned to his fate and ready to accept the cruel reality, he was shocked to discover that this turned out to be a special invasion from another world!