Jung Yun-o or better known as Jung Jaehyun is a member of the South Korean band NCT, sub unit NCT 127, he was born on February 14, 1997, in Seoul, South Korea, he has an innocent and kind nature, entered in the hyung line, he has his charismatic charm and talent, his white skin and burly body are iconic for a jaehyun, he also has a beautiful and iconic voice, he is sometimes quiet sometimes a lot of behavior, he is also sometimes very adorable,

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jung yun-o atau lebih dikenal jung jaehyun adalah anggota dari grup band korea selatan yaitu nct, sub unit nct 127, ia lahir pada 14 february 1997,di Seoul korea selatan, ia memiliki sifat is polos dan baik, di masuk dalam hyung line,ia memiliki pesona dan bakat nya yang kharismatik,kulit putih dan tubuh kekar menjadi ikonik tersendiri untuk seorang jaehyun,dia juga memiliki suara yang indah dan ikonik, dia kadang pendiam kadang banyak tingkah, dia juga terkadang sangat menggemaskan,