The novel tells the story of several young people who met at a class reunion a few years after graduating from college. At this time, the classmates had changed a lot. The utilitarian society made them busy and diluted their friendship. At the party, a classmate who had a good relationship with the protagonist sang a song called Old Boy, which instantly touched the protagonist's heart.
When they were in college, they were wild and free, with endless ideals. They were once scumbags, and then they worked hard to become top academics. The days they stayed up late in the library are something they will never forget. But after graduation, everything changed. Did we change the world, or did the world change us? Only then did I realize how difficult it was to stick to the original dream. The girl I once liked was not destined to be with me in the end. College time is wonderful, let us cherish it!