During dinnertime, MA CHONG, CHI-LEI and CHI-YAN are not home yet. All of them have actually sent SMS to LAI-SHEUNG to inform her that they will be late but MA FU blames them for using SMS instead of phone calls. When CHI-LEI crosses the street, she concentrates too much on phone calls and internet browsing that she is almost knocked down by a car. CHI-LEI's mobile phone is broken. MA KEUNG asks her to stop using the internet for three days to prove that she is not addicted to the internet. CHI-LEI's classmate informs her of the latest news in an online discussion forum and CHI-LEI cannot help to use the internet again in the coffee shop secretly... In order to check out her idol's blog, CHI-LEI refuses to offer her seat to a mother and her son who need to hand in his homework urgently through the internet. CHI-LEI goes to the library to do some research for joining a contest on describing old Hong Kong……