From the moment a person is born, there are countless people walking around in your heart. You don't know what kind of encounters you will have with certain people. Some people, you try to keep them, but they will still leave. Some people, when you are not paying attention, quietly slip into your heart and stay there for the rest of your life... Tang Chen, I often think of that summer, when the sun was scorching hot, you led me through the streets and alleys of the whole city. Finally, you pointed at a construction site and looked at me with a smile on your face, sweating profusely. With two rows of big white teeth, you said, "An'an, our family will buy a house here in the future, and I will leave the decoration to you... An'an, how many children will we have in the future... An'an, I will give you all the money I make in the future... An'an, I will raise you in the future... An'an, you marry me... So now, who are you saying such things to? Tang Chen, leave me, how are you doing?"