The letter Liu Yan wrote to Mu Liangfeng in the movie "Smoke Everywhere"

Respected Mu Liangfeng: This letter is for you. I know that you have left this place to pursue your own ideals and dreams. But I hope you know that no matter where you go, you will never forget our friendship and agreement. I used to think that the friendship between us would fade with time. But I've been missing you ever since I left. I hope that we can meet again and go through those difficult times together to remember what we've been through together. I know that this world is very complicated, with many dangers and uncertainties. But I believe that our friendship and agreement will bring us strength and courage. No matter what happens, I will always protect and support you. Finally, I want you to know that no matter where you go, I will always miss you. If you need my help or want to chat with me, you can find me anytime. No matter what you do, I will always be by your side to cheer you on. I wish you a happy life liuyan