Editorials 
Details
- First Name: Ji Sou
- Family Name: Jang
- Native name: 꽈뚜룹
- Also Known as: 장지수, Jang Ji Soo, Jang Ji Su, QDR, Chang Ji Soo, Quaddurup
- Nationality: South Korean
- Gender: Male
- Born: December 8, 1999
- Age: 26
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