- JiWon (Ji/woo and Chae/won)
- ChuuGo (Chuu and Go/Won)
- "See Saw" (2018)
- Both were born in South Korea.
- Both are in LOONA yyxy.
- Both have the same blood type.
- Chuu is older.
- Chuu was introduced in 2017, whereas Go Won was introduced in 2018.
- They are in the group LOONA.
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