- HeeHyun (희현) (HeeJin and HyunJin)
- Both were born in 2000.
- Both were born in South Korea.
- Both were revealed as members in 2016.
- Both are part of the subunit LOONA 1/3.
- Both of their representative are mammals: rabbit (HeeJin) and cat (HyunJin).
- Both of their representative colors are warm colors.
- Both participated in the survival show MIXNINE.
- Both have two siblings.
- Both attended Hansung Women’s High School and graduated together.
- Both are confident in their dancing abilities.
- Both really like bread.
- HeeJin is one month older.
- HeeJin was born in October, while HyunJin was born in November.
- HeeJin is Libra while HyunJin is a Scorpio.
- HeeJin was born in Seongnam, while HyunJin was born in Seoul.
- HyunJin’s blood type is AB while HeeJin’s is A.
- HyunJin can play the piano and guitar, while HeeJin can only play the guitar.
- They are in the group LOONA.
- They dorm together, along with the rest of the members of LOONA 1/3.
- Both of them debuted as members of LOONA during their birth month.
- HyunJin went with HeeJin to Paris before her reveal.
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