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. On their inspection tour, CHING SUM and TAI-MUI run into BOWIE, from whose sketches CHING SUM out of the blue sees TAI-MUI's portrait, so CHING SUM misconstrues that the two are carrying on with each other. By chance, BOWIE overhears the conversation between FU MA and CHING SUM, learning that FU MA uncovered CHING SUM had an affair in Mainland China and had been cheating on TAI-MUI.… ...