On a certain day of a certain year and month, when we leave the school we once called hell; on a certain day of a certain year and month, when we start to wear masks to deal with customers; on a certain day of a certain year and month; when we find that expressions have turned into performances; on a certain day of a certain year and month, when we use the profit formula to calculate the people we love... At that time, will you still think of the purest love buried in our hearts in the jade years?