Seven years ago, "Xiao Huan, when will you grow up? Grow up quickly." Seven years later, "Teacher Qi, I have grown up, and I am back." The stubborn little sheep seven years ago, and the even more stubborn little fox seven years later, will always fall in love with the same big bad wolf. I have always had a hard time getting over the love between teachers and students. In my eyes, the love between teachers and students is just like the love between superiors and subordinates in the office. I don't understand why it's not supported or understood if it's consensual. Therefore, this is a small beautiful article about teachers, students and the office. I hope that in this article, I can fulfill all the beautiful and innocent teacher-student love and office love.