In the fanfiction, the girl might be a student who is also a big fan. She could be very smart and help Junkook with things like lyrics writing if he needs some fresh ideas. Their friendship might start from her sending him a really interesting letter or message about his work, and from there it blossoms into a beautiful best - friend relationship.
She could be an ordinary girl who just happened to cross paths with Junkook. Maybe she was at one of his concerts and something special made them start talking and eventually become friends.
Perhaps she is a girl with some special talent, like being an amazing painter or a great writer. Her unique qualities attract Junkook and they form a friendship. She could use her art to inspire Junkook in his own creative pursuits, and they could collaborate on some projects in the fanfiction.
The story could revolve around how Junkook's best friend, the girl, helps him see things from a different perspective. For example, she might be really into environmental causes and gets him involved. They could go on trips together to do volunteer work. And their friendship is not just about having fun, but also about growing as individuals. They might have heart - to - heart conversations that help Junkook in his career decisions too.
She could be a young girl who has lost her parents in a magical accident. Maybe she has some special powers that Harry notices and that's why he decides to adopt her.
The girl might be a new superhero in training. She comes to Paris to learn from Ladybug and Chat Noir. During her time there, she catches the eye of one of them, and the story of'marry that girl' begins. She could bring a fresh perspective to the Miraculous team and also add a new dynamic to the relationship in the fanfic.
The girl might be a psychic. In this fanfiction, her psychic abilities could be the key to understanding the 'knots' related to the xenomorphs. She could sense their presence and motives in a way others can't. This makes her both a target and a potential savior. She might be trying to communicate with the xenomorphs to find a peaceful solution, but the 'knots' in their relationship make it extremely difficult.
It could be a new character created specifically for the fanfiction. Maybe a witch who Sirius meets during one of his adventures away from his usual group of friends.
The girl might be a descendant of an old wizarding family that has fallen on hard times. Harry adopts her to revive the family's honor. She could have some special knowledge or heirloom that attracts Harry's attention and makes him decide to take her in.
Perhaps she is a time - traveler from the future. She has knowledge of future events that will endanger the ninja world and Sasuke. So, she tries to enlist his help, and in the process, a relationship develops between them. She might have unique abilities due to her time - traveling origin.
She could be a young detective in a mystery - based fanfiction. Usually, she uses her glasses to carefully observe clues. But without them, she glares in annoyance when she misses something important. She might be on the case of a stolen artifact or solving a murder mystery, and her lack of glasses is a hindrance that makes her more irritable.
She could be an original character created by the fanfiction writer. A normal girl who just happened to be in the wrong place at the wrong time, like near a fight between Spider - Man and a villain.
Another possibility could be Sakura. Although she had feelings for Sasuke for a long time, in a fan - created scenario, things could have taken a different turn and she could end up in a relationship with Naruto and get pregnant. However, this would be quite a departure from the original plot dynamics.