- They both have brown eyes.
- They are both members of Y-Teen.
- They both have a sister.
- SeolA has silver hair but Cheng Xiao has black hair.
- SeolA has an older sister but Cheng Xiao has a younger sister.
- SeolA was born in Seoul, South Korea but Cheng Xiao was born in Shenzhen, China.
- SeolA was born in 1994 but Cheng Xiao was born in 1998.
- Cheng Xiao plays Guzheng but SeolA cannot play any instruments.
- Cheng Xiao was a mentor on Idol Producer but SeolA was not.
- They are both in the group Cosmic Girls.
- SeolA has said that if she was a boy she would date Cheng Xiao because they're awkward.
Community content is available under CC-BY-SA unless otherwise noted.