Maybe it's about Ren preparing a special meal for his friends in RWBY. He could be using his skills to cook something that gives them strength for their battles, like a dish made with Dust - infused ingredients.
It could be that Ren discovers a new recipe from an ancient book in the RWBY world. He decides to cook it, but it has some unexpected effects. For example, the smell of the cooking food attracts Grimm instead of his friends at first. Then he has to figure out a way to deal with the situation while still making sure the dish turns out okay.
Ruby could be involved. She might be the first one to smell what Ren is cooking and come running into the kitchen, eager to taste it. Then she could end up helping Ren a bit, like chopping some vegetables in her clumsy but endearing way.
Well, it could be about Naruto wanting to show his care for Sasuke through cooking. Maybe he tries to make Sasuke's favorite dishes to bring back old memories and re - kindle their friendship.
Well, perhaps the plot could involve Harry wanting to show his gratitude to the Weasleys. He might decide to cook their favorite dishes, leading to some comical moments in the kitchen as he tries to figure out the recipes. Maybe he gets some help from the Weasley matriarch or one of the younger Weasleys.
One possible plot could be that the characters face a new, more powerful type of Grimm that has abilities they've never seen before. They have to quickly adapt and find new ways to fight. Maybe Ruby discovers a new form of her scythe's power to combat this threat.
One possible plot could be Trump arriving in the RWBY world through some sort of magical portal. He might initially be confused but then start to apply his business - like mindset to the problems in the RWBY world, like trying to negotiate with the Grimm. Another could be that he becomes a mentor - like figure to one of the RWBY characters, teaching them about leadership in his own unique way.
Well, it could be that Naruto somehow gets transported to the RWBY universe and has to deal with the Grimm. Maybe he uses his ninja skills to fight them off. For example, his shadow clone jutsu could be used to confuse the Grimm while he attacks from another angle.
Well, if Naruto reincarnates in RWBY fanfiction, he could change the power balance in Remnant. His ability to use Rasengan and other powerful jutsus would make him a formidable force. He may also form unique bonds with the characters in RWBY. Maybe he would team up with Ruby and help her improve her scythe - fighting skills with his own melee combat experience.
Perhaps the story starts with the RWBY characters being mysteriously transported to the For Honor universe. They have to quickly adapt to survive. Ruby could be fascinated by the honor - based combat system. They team up with some of the For Honor characters and face off against a common enemy. Along the way, they discover new aspects of themselves and their fighting capabilities while exploring this new and dangerous world.
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.
The plot might involve the Delta Squad bringing their unique combat skills and technology from their own world into RWBY. They could start off as outsiders but gradually earn the respect of the locals as they take on difficult missions against the Grimm. For example, they could introduce new ways of strategizing that the RWBY characters haven't seen before. They may also have to deal with the politics and different factions within the RWBY world, all while trying to find a way back to their own place. And of course, there could be some really cool fight scenes where their different fighting styles clash and combine.