The series revolves around a group of six women: Siu-Sze, Julie, Akina, Yuen Chau, Jenny, and Cyndi, with regular flashbacks to their secondary school days in mid-1980s Hong Kong.

• Flora Chan Wai-Shan
• Carman Lee Yeuk-tung
• Loletta Lee Lai-Chun
• Fennie Yuen Kit-ying
• Eliza Sam
• Lawrence Ng
• Lawrence Cheng Tan-shui
• Steven Cheung Chi-hang