- EunBin (Eun/seo and Soo/bin)
- SooYeon (Soo/bin and Ju/yeon)
- JuBin (Ju/yeon and Soo/bin)
- They were both born in South Korea.
- They both have brown eyes.
- They can both play piano and guitar.
- They are both members of Y-Teen.
- They are both in the sub-unit αγύρτης.
- Soobin has dark brown hair but Eunseo has light brown hair.
- Soobin was born in 1996 but Eunseo was born in 1998.
- Soobin was born in Seoul but Eunseo was born in Incheon.
- Soobin can play the flute and the violin but Eunseo can play the drums and tambourine.
- Soobin is in the sub-unit Sweet but Eunseo is in the sub-unit Joy.
- They are both in the group Cosmic Girls.
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