MO NGA-LIK, ALEX, product designer of the Research & Development Department of Goaltech Scientific Ltd., is not only talented but also very popular among his colleagues and boss. His four proteges, who are known as A4, even regard him as their good friends. His girlfriend, LING LING-CHING, works for an NGO. MO KIN-YEE, KIN, ALEX’s younger sister, works at an insurance company. An aggressive member of the “post-80s” generation, her dream is to buy a flat of her own. CHI WING-HAN, VIOLET, manager of the Administration Department, is picking the receptionist up the second ALEX walks into the office. He decides to teach VIOLET a lesson. Senior Marketing Officer MAN KA-WA, STEVE, went to the same secondary school as ALEX. He has worked at Goaltech for 10 years. STEVE has a difficult time being teased about when he is meeting a client with his boss……