One interesting storyline could be a character from RWBY getting injured during a battle and having to recover in the hospital. There, they might meet new allies or face unexpected challenges within the hospital setting. For example, dealing with a shortage of medical supplies due to Grimm attacks on supply routes.
One idea could be an OC who is a healer in the hospital and has to deal with the unique injuries of RWBY characters. For example, they might struggle to heal a Grimm - inflicted wound that has some sort of dark magic attached to it. Another idea is an OC that discovers a new type of Dust - based medicine in the hospital, which could revolutionize the way injuries are treated in the RWBY world. And also, an OC who is a patient in the hospital and has amnesia, and throughout the fanfiction, they slowly regain their memories and realize they have a special connection to the RWBY universe.
Some fanfictions might have a storyline where the characters swap personalities. Yang could become super shy and reserved, while Blake turns into a hyper - active and overly talkative character. This would lead to all sorts of comical situations as they try to adapt to their new personalities while still facing the challenges of the RWBY world. The team would have to figure out how to work together in this new, wacky dynamic.
One interesting storyline could be a fanfiction where the characters have to face an ancient evil that was long forgotten in the RWBY universe. This evil could be something that predates the Grimm and has powers that are completely different from what they are used to dealing with.
One possible plot could be that a character gets seriously injured during a battle and is rushed to the hospital. While in the hospital, they have to deal with their own fears and insecurities as they recover. Meanwhile, their teammates visit them and there are some heart - to - heart conversations that strengthen their bonds.
One interesting storyline could be about a young doctor's journey in the hospital. He faces various challenges like difficult patients, complex medical cases, and a competitive work environment. It can show his growth from a novice to an experienced medical professional.
Another possible storyline is the OC swordsman's quest for a powerful sword or a lost technique. This could involve exploring ancient ruins in the RWBY world, facing various challenges and enemies along the way, and perhaps uncovering secrets about the world's past related to swordsmanship.
Perhaps the OC is an outsider who has some information about a new threat to Vale. Glynda initially suspects the OC but as they interact more, she realizes the OC is genuine. They then form an alliance to investigate the threat, and during this process, a friendship or something more might develop between them. Their different personalities, Glynda's strictness and the OC's more free - spirited nature, could create some interesting dynamics in the story.
Another storyline could involve them using the group chat to plan a surprise party for one of their friends at Beacon Academy. They'd discuss decorations, food, and how to keep it a secret. There could be some comical moments when things almost go wrong during the planning process.
A third storyline could be centered around a mysterious character who joins the team temporarily. This character has a hidden agenda that the team gradually uncovers. It could lead to a lot of suspense and action as the team tries to figure out whether to trust this new addition or not.
One interesting storyline could be a crossover where Naruto's ninjutsu skills are combined with Raven's abilities in the RWBY universe. For example, Naruto might teach some of the RWBY characters about chakra control, and in return, they show him how to use Dust. Another could be a story where Raven and Naruto have to team up to face a common enemy that threatens both their worlds. They could learn from each other's fighting styles and develop new strategies.