They left their hometown with hope and came to their dream city. They want to have a place to live in the city and are prepared to work hard. They want to earn a little every year and buy a small house in a few years. In a few years, you can get married, start a business and become a city dweller. Good wishes are almost realized in daily work, but the rhythm of the city makes him unable to keep up, and they are abandoned.

But they still believe that they can open up a new world through their own efforts, and they are full of confidence, because they are still young, and they think that even if they can create some achievements for their children and grandchildren in their lifetime, they will be many achievements.

In this materialistic world, in this era where every second counts, and in this anxious city, all you see are people who come and go in a hurry. In order to make a living, they turn involuntarily like clockwork snails, and they can't stop, maybe they can't stop.

Gradually, they caught the germs of the city, began to be depressed, and then began to be anxious and irritable; Finally, they began to get hysterical ... They lost patience.

After repeated efforts and being abandoned by the city, they began to complain about the injustice of this society and began to miss the simplicity of rural life. The idea of falling leaves returning to their roots aggravated their homesickness.

So, they went back, but they set their sights on Cang Sang.