I'm not sure specifically as I haven't read it. It could be about a girl who is in an unexpected situation or has some unusual qualities or experiences.
Since I don't know the story, I can't say for sure who the main character is.
It could be due to their personalities. For example, if one is extremely outgoing and the other is very shy. Their different temperaments would create an unlikely combination for a love story. In such a case, they would have to overcome their differences to be together.
Another fanfiction idea is that Gekko and Luna Girl are both transported to a different dimension. In this new world, they are the only ones who know each other from their own world. At first, they are suspicious of each other. But as they try to find a way back home, they realize that they need to rely on each other's skills. Gekko's ability to befriend creatures and Luna Girl's knowledge of dark magic could be the keys to their escape. This journey could make them see each other in a new light and form an unexpected bond.
Once there was a little mouse and a big cat. Normally, they would be enemies. But this cat was old and had lost its hunting instincts. One day, the mouse got caught in a trap. The cat saw it and instead of eating it, the cat used its paw to free the mouse. Since then, they became unlikely friends. The mouse would often bring little bits of food it found to the cat, and they would keep each other company.
The identity of the unlikely murderer would depend on the specific true story. Without more details, it's impossible to say exactly who it was.
It could be their social standing. If they were well - respected in the community, like a church leader or a successful businessperson, people would not suspect them easily. They were probably seen as having too much to lose to engage in such a heinous act. Also, if they had a family and a good reputation, others would find it hard to believe they could be a murderer. Their daily life might have been so ordinary and positive - looking on the surface that no one would think they were capable of taking someone's life.
A solid plot structure. An unlikely story often has a unique or unexpected plot. But if it's well - structured, with a clear beginning, middle, and end, and the events are linked logically (even if they're strange), it can be made believable. For instance, in a time - travel story, as long as the rules of time - travel are set and followed, it can work.
In an 'unlikely murderer true story', it might be a story of someone who was considered a hero in the community before the truth came out. For instance, a local volunteer firefighter could be the unlikely murderer. There could have been a complex web of relationships and events that pushed this person over the edge. Maybe it was jealousy, or a financial problem that they thought murder could solve. These types of stories make us realize how complex human nature can be.
The 'holly black unlikely story' might be a unique creation that combines Holly Black's signature style with an element of the unexpected. Holly Black often writes in the realms of fantasy, dealing with dark faerie tales and the like. So this 'unlikely story' could be about a character who finds themselves in a situation that seems improbable within the context of her created worlds, like a human suddenly having to navigate a complex and dangerous faerie court where they have no prior knowledge or experience.
Unlikely friends can get along through mutual understanding. For example, if one is a predator - like a wolf - and the other is a prey - like a sheep - they need to understand that they are different from the norm of their species. The wolf might refrain from its hunting instincts and the sheep might trust that the wolf won't harm it. This could start from a situation where they both face a common threat. Like a forest fire that forces them to rely on each other for survival.