CHU LEI and other M Club members meet up with CHI-LUN at the hot pot restaurant. While waiting for KWOK-LEUNG, SIU-SZE recalls her past memory with CHU LEI. When studying in the secondary school, FUNG-SIN knew that both SIU-SZE and CHU LEI are fond of CHI-LUN. CHU LEI pretends that she is drunk and she asks CHI-LUN to send her home. CHU LEI brings CHI-LUN to the dance studio and they meet SIU-SZE there. CHI-LUN has forgotten SIU-SZE completely and SIU-SZE feels sad. SIU-SZE wants to hire a dance instructor and KA-LAI immediately recommends herself to her. KA-LAI's dance steps are very intensive and the old student collapses. SIU-SZE discovers that a large fitness center is promoting their dance classes. She tries to enroll for the class with KA-LAI so that they could learn from them. However, the fitness center's boss DAN-DAN sues them for stealing her company's confidential information……