A group of fifteen or sixteen-year-old children, with their own ideals, stepped into the gate of Hongzhong, which is a key high school in the city and the cradle of college students. They are looking for wings to fly here. They step by step towards the so-called adult age, swinging forward on the edge of this age, like standing on the tail end of youth. One step back, they are still teenagers, one step forward they are adults. This is really an embarrassing age. At this time, they sometimes behave like children and play childhood games; sometimes they discuss national affairs, express political opinions, and comment on current news; sometimes they form groups of three or five and act arrogantly inside and outside the campus; sometimes they also discuss with serious expressions. Whether there is really everlasting love, they are proud to be on this edge, because they can have the composure and competence of adults, and the innocence of children; they are also sad to be on this edge, because if they make a mistake, they will pay a heavy price.
