LAI-SHEUNG doesn't want CHI-LEI to stay idle in her summer holidays so she asks her to help doing the housework and CHI-LEI is upset. LAI-SHEUNG knows that MA KEUNG wants to buy a new game console for CHI-YAN. She requests CHI-YAN to sell his game console and MA YAU tries to stand by CHI-YAN. CHI-LEI and MA YAU go shopping together. When they return, they discover their neighbor Mrs CHIU holding a little puppy. Mrs CHIU invites CHI-LEI to adopt one of her puppies. CHI-LEI dare not to accept without approval from the family but MA YAU suggests her to bring the puppy home first. After arriving at their house, the puppy suffers from diarrhea and vomiting continuously. CHI-LEI calls Mrs CHIU and realizes that she has to give medicine to the puppy but she fails to do it successfully. Her classmates suddenly invite her to play and CHI-LEI leaves the puppy home with a note……