- JinJung (Jin/sook and Yeon/jung)
- YeonSook (Yeon/jung and Jin/sook)
- They were both born in South Korea.
- They both have brown eyes.
- They both have a brother.
- They were both born in 1999.
- They are both in the sub-unit φορεύς.
- Yeoreum has silver hair but Yeonjung has light brown hair with blonde highlights.
- Yeoreum was born in Seoul but Yeonjung was born in Gwangmyung.
- Yeoreum is a rapper but Yeonjung is a vocalist.
- Yeoreum can play piano, pipe and jjangu but Yeonjung can play the guitar.
- Yeoreum is a member of Y-Teen but Yeonjung is not.
- Yeonjung was a part of I.O.I but Yeoreum was not.
- Yeoreum is in the sub-unit Joy and Yeonjung is in the sub-unit Natural.
- They are both in the group Cosmic Girls.
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