- They both have brown eyes.
- They were both born in Seoul, South Korea.
- They both have a sibling.
- Luda has brown hair but Yeoreum has silver-purple ombre hair.
- Luda was born in 1997 but Yeoreum was born in 1999.
- Yeoreum can play piano, pipe and janggu but Luda cannot.
- Luda has an older sister but Yeoreum has a younger brother.
- Yeoreum is a member of Y-Teen but Luda is not.
- They are both members of Cosmic Girls.
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