Vocational secondary school is a school that people understand to be a school where people who did not study well in middle school finally got into the exam by cramming. Once upon a time, there was a boy named Du who liked to act cute. He grew up in a traditional family. He was a two-sided person. Sometimes he was very rational and sometimes he was very emotional. He had his own world. He would laugh silly to himself at any time because he knew that sometimes he was not happy. He just faced the world with his unique mask. In his world, he encountered experiences and experiences that he had never had before. Some things changed his life, and he became a person living in the world of words. The story begins here.