Plot: Knowing that TAI-MUI thinks CHEUNG PO-TSAI is merely a fictional character, KIM-FUNG leads her to the store room of the police station, briefing her about the history and background with regard to CHEUNG PO-TSAI, plus WONG’s Genealogy, which is then downloaded by TAI-MUI to her tablet computer. CHING SUM, from the VIP Protection Unit, is dispatched to Cheung Chau to conduct a site survey for his upcoming mission, so KIM-FUNG assigns TAI-MUI to assist him, and it turns out that they were a couple