TIN-SHAN wants to bring the fifth generation of quantum products to the market, but DING-KAP frankly points out there is no new feature of the new product except its appearance. Suddenly, DING-KAP receives a phone call from SZE-SZE and rushes to her school. It turns out that the domestic helper who looked after SZE-SZE left; whereas SZE-SZE needs to change clothes and put on a dress, but DING-KAP cannot get into the female dressing room. Meanwhile, CHIU YIU is so caught up in an investigation that she cannot make it to the school, resulting in SZE-SZE being bullied. CHIU YIU intends to seek justice for SZE-SZE the following day, yet she receives an ad-hoc mission, which is to investigate a criminal named GECKO. Following the clues, CHIU YIU arrives at a massage place and suspects that the criminal must be one of the clients there. To her surprise, the one who opens the door is massage therapist KO KWAI……