To find SILLY CHIU's weakness, SAU-NA and KA-KA go to work in a bar, seeking an opportunity to get close to him. SILLY CHIU shows no interest in SAU-NA as he finds her too old, instead he actively makes small talk with KA-KA. KA-KA then goes to SILLY CHIU's home and successfully plants a spy cam there. SAU-NA and the others track SILLY CHIU and SHUM WING to an industrial building, where they surprisingly run into OI-KIU. After they solve the case, SAU-NA thinks OI-KIU is very special because she put righteousness above her own family. Upon their return to the agency, SAU-NA announces to them that she has officially invited OI-KIU to join them. Out of the blue, SIU-LIN bursts in to look for KO YAN. At first, all of them think she and KO YAN have some relationship issues. It's not until later that they come to realise that SIU-LIN is actually their client.… ...