In order to find a home in the tiny area of Hong Kong, some people will give up their dreams, be willing to work hard and live frugally to pay for their mortgage. These people are known as "brick slaves". Through several standard brick slaves, the series will discuss the real meaning of responsibility and bearing responsibility. Some people pursue stability and allow themselves to be tied to a mortgage for their whole life. Others will seek freedom and choose to be like a snail without its shell. Which is the wise choice?