When Feifei was in junior high school, her deskmate was An Chen. When Feifei was in high school, her deskmate was... It was a single table at that time, but An Chen was still sitting in front of Feifei. Code words were one of Anchen's ways of teasing Feifei. He spoke softly in class, but sometimes the teasing was not teasing, but how many people really understood? Youth is also gone. Do we have to miss it, or do we not miss it?