She is jungkook's elder brother's friend. They met when he was 5. She's 1y older than him. He always loves to being around her. She also likes his presence. They like to spend time together and he always being clingy, shy, cute, pouty bunny, annoying to her & she listens and fullfil all his desires like a responsible sister. He always called her by noona (big sister) and she call him koo/bunny. She fell first but he fell harder in love but afraid to express their feelings cz they cant lose them.