Nana Jung is 15 year old that came from America to Busan when she was 8 but went back when she was 10. Jungkook was one of her best friends back in Busan both kept in touch. As both grew older talking to each other when they had the chance they grew a huge passion for music. Once Nana turned 13 she moved to Seoul to full fill her dreams at Big Hit. Nana later found about BangTan Sonyeondan, that her best friend was in. As she remembered she always liked Jungkook does Jungkook feel the same way as they grow closer as they stayed in touch before.