HING and HEI leave the house and go traveling in China. LAI has to take care of the pharmacy alone but she cannot manage it at all. PANG comes to help her and teaches her the 5 principles of managing a shop: well organized, well managed, well planned, well behaved and well cleaned. PANG and LAI would like to bring these principles back to their family so that their family members would not tell reams of rubbish all the time. However, their plan has made the situation worse…
