- JiSoo (Ji/woo and Soo/young)
- Yvuu(Yv/es and Ch/uu)
- Both were born in South Korea.
- Both have brown eyes.
- Both have brown hair.
- Both were revealed as members in 2017.
- Both are part of LOONA's third sub-unit.
- Both of their representative are birds: Swan (Yves) and Penguin (Chuu).
- Chuu’s blood type is A, whereas Yves’s blood type is B.
- Yves is older.
- They are in the group LOONA.
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