"Would you like? Hello! I'm Cheng Xiao!" Cheng Xiao (성소) is the main dancer, sub vocalist, visual, and face of the girl group WJSN. She studied traditional Chinese Dance for 10 years while also studying martial arts in Shenzhen. Cheng Xiao left China at a young age to join Starship Entertainment, being told she might not get another chance. Cheng Xiao is also a member of Cosmic Girls' sub-unit 'Wonder'.