In the period time of Chinese rocket Shenzhou V launched, 10 years old boy Dou Zi who suffered from his bed-wetting, met Huang Ying (No. 18) while he was washing the bed sheet on the roof. The woman promised to help Dou Zi to solve his problem and take him to play video game. In the process, the helpless Dou Zi gradually produced a unexplainable feeling to the Huang Ying. As a result, he happened to cure his bed wetting. But at this time, the woman has disappeared. In order to see her again, Dou Zi made a brave decision...