The article summarizes the experience of Chen Chun who used to live in Huangpu East District of Shanghai. There was a tunnel that linked Huangpu East District of Shanghai to the down town. The walls were the striking part of the tunnel. The water oozes through the tunnel and left behind the grimy rings on the wall. The author told the people not to come to his place, because of the congested tunnel. The tunnel exit could be seen from the window of the apartment which was on the sixth floor. There were ...