- DaSeo (Da/young and Eun/Seo)
- JuYoung (Ju/yeon and Da/young)
- DaYeon (Da/young and Ju/yeon)
- They both have brown eyes.
- They were both born in South Korea.
- They can both play tambourine.
- They are both members of Y-Teen.
- Eunseo has light brown hair but Dayoung has red hair.
- Eunseo was born in Incheon in South Korea, but Dayoung was born in Jeju.
- Eunseo was born in 1998 but Dayoung was born in 1999.
- Eunseo can play piano, guitar and drums but Dayoung can play triangle.
- Eunseo has two older sisters but Dayoung has no siblings.
- Eunseo is in the sub-units Joy and αγύρτης but Dayoung is in the sub-units Wonder and φορεύς.
- They are both in the group Cosmic Girls.
- They are the best cooks in Cosmic Girls.
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