- DaQi (Da/young and Mei Qi)
- YoungQi (Da/'young and Mei Qi)
- MeiDa (Mei Qi and Da/young)
- They both have brown eyes.
- They both don't have any siblings.
- Mei Qi was born in Henan, China but Dayoung was born in Jeju, South Korea.
- Mei Qi is an actress but Dayoung is not.
- Mei Qi has purple hair but Dayoung has red hair.
- Dayoung can play the triangle and the tambourine but Mei Qi can't play any instruments.
- Dayoung is a member of Y-Teen but Mei Qi is not.
- Mei Qi was born in 1998 but Dayoung was born in 1999.
- Mei Qi is in the sub-units Natural and ενύπνιον but Dayoung is in the sub-units Wonder and φορεύς.
- They are both in the group Cosmic Girls.
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