CHUEN knows the problem between CHUN and LAI and she tries to bridge them. CHUN invites LAI to attend his birthday. However MEI has the same birthday. CHUEN arranges MEI's party at 10 o'clock so that LAI can meet CHUN first. MEI is touched when she knows that CHUEN and LAI celebrate with her but she pretends that she has no concern or it. By mistake, CHUEN exchange CHUN and MEI's birthday cakes. MEI is angry to learn that LAI stays with CHUN. She goes to question them MEI puts some sort drugs in CHUN's drinks. Being arrested by the drug, CHUN loses his self-control and they have a car race in the street.