There is always a big gap between reality and imagination. After Liang Zhiyuan (played by Hu Jun) walked out of the school gate and entered the society, he felt the complexity of human relations in the society. People get along with each other as if they are acting. You never know which words the other person says are true, and you can only carefully guess other people's thoughts. With the help of his colleagues, he met the versatile Xu Xiaoman (played by Mei Ting), and the two just formed a complementary personality. Soon, they both fell in love. Xu Xiaoman also enlightened Liang Zhiyuan, who could not keep up with the times, from time to time, but he was born nerdy and could not listen at all, and finally the two parted ways. After Liang Zhiyuan broke up with Xiaoman, he was lost and depressed. He had to face this complex society independently again. In the end, he acquiesced to the rules of the game for survival today, but was promoted and reused. After everything got used to, he couldn't help but think of Xu Xiaoman's original teachings, but it was too late...