- HaSoul (Ha/Seul and Jin/Soul)
- JinSeul (Jin/Soul and Ha/Seul)
- Both were born in South Korea.
- Both have dimples.
- Both are in the elder/unnie line.
- Both were born in 1997.
- Both of their representative colors are cool colors.
- Although both were born in South Korea, HaSeul had moved to America to study.
- HaSeul can speak English, whereas JinSoul cannot.
- Jinsoul is apart of the sub-unit ODD EYE CIRCLE, whereas HaSeul is in LOONA 1/3.
- JinSoul is older by three months.
- JinSoul was born in June, while HaSeul was born in August.
- JinSoul is a Gemini, while HaSeul is a Leo.
- JinSoul had her hair bleached blonde for her debut, whereas HaSeul had kept her brown hair.
- HaSeul's blood type is O, while JinSoul's is B.
- They are in the group LOONA.
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