- They all have brown eyes.
- They were all born in China.
- They are all dancers.
- They are all actresses.
- Xuan Yi has black hair, Cheng Xiao has brown hair and Mei Qi has purple hair.
- Xuan Yi was born in Hainan, Cheng Xiao was born in Shenzhen and Mei Qi was born in Henan.
- Xuan Yi was born in 1995 but Cheng Xiao and Mei Qi were born in 1998.
- Xuan Yi is a lead dancer, but Cheng Xiao and Mei Qi are main dancers.
- Xuan Yi can play piano, Cheng Xiao can play Guzheng, but Mei Qi can't play any instruments.
- Xuan Yi and Mei Qi are members of Rocket Girls 101 but Cheng Xiao is not.
- Cheng Xiao was a mentor on Idol Producer, but Xuan Yi and Mei Qi weren't.
- Xuan Yi is in the Joy Unit, Cheng Xiao is in the Wonder Unit and Mei Qi is in the Natural Unit.
- Xuan Yi and Cheng Xiao are in the sub-unit αγύρτης but Mei Qi is in the sub-unit ενύπνιον.
- They are all in the group Cosmic Girls.
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