Because of HANG and MEI’s practical joke, all of the school computers in Hong Kong are infected with viruses. The principal orders HANG and MEI to leave the school. CHING, KIU and YAN negotiate with the principal to let HANG and MEI stay if they clean up the viruses. They thank the sisters for their help. There is a rumour that the school will cut staff. Every teacher suggests NAM to quit in order to save the others. NAM does so. However, the sports coach resigns first. NAM finds the coach to have a chat, which gives him a chance to make up with her. The interschool competition is coming. SUN, NIC, KIT, KIU and YAN train hard for it. KIT worries that his leading position is jeopardised by NIC. Meanwhile, SUN sports out KIU’s weakness and teaches her patiently. KIT knows how KIU feels about SUN and points it out to her, but she denies. NIC’s sister’s health is deteriorating……
Bond Chan
Kit
Cathy Tsui
Miss Kwan
Lawrence Cheng Tan-Shui
The 3 Girls' Dad
Charles Szeto
Yue Yat Sun (Ah Sun)
Jolie Chan Yuen-Kei
Ada
Charmaine Li
Yip Kiu (Ah Kiu)
Vin Choi
Nic Fong (Ah Nic)
Monie Tung Man-Lee
Mon Mon
Yoyo Chen Chi-Yiu
Yip Yan (Yan-Yan)
Vivien Yeo
Yip Ching (Mia)
Joe Ma Tak-Chung
Coach Cheung
Carlene Aguilar
Amy
Race Wong
Lam Lam
Bruce Leung Siu-Lung
School Announcer
Maria Chen
Henry Yu Yang
Doctor
Vivian Lok Lok
Eugen's Best Friend