Well, a possible plot could be that Ruby accidentally ingests some nanobots. These nanobots then start to enhance her abilities in unexpected ways, like making her super fast or giving her the ability to see things on a microscopic level. But there are side effects that she has to deal with. Or perhaps a group of thieves steal nanobots from a high - tech research facility in Atlas and Ruby has to track them down. The nanobots could be very dangerous in the wrong hands as they can be programmed to create destructive weapons. She would have to race against time to stop the thieves before they can use the nanobots for evil.
One plot idea could be that Ruby discovers a hidden stash of nanobots that were created by an ancient civilization in Remnant. These nanobots start to malfunction and cause chaos in Vale. Ruby has to use her skills and Crescent Rose to contain and fix the nanobots. Another idea is that a villain uses nanobots to control the minds of some of Ruby's friends, and she has to find a way to break the control and defeat the villain. A third plot could involve Ruby teaming up with a scientist to study the nanobots and use their unique properties to upgrade her weapon or gain new powers.
Ruby could start off being a bit scared or hesitant around the nanobots at first. But as she learns more about them, she becomes more confident. For example, if the nanobots can repair things, Ruby could learn patience as she watches them work. She might also develop her problem - solving skills as she figures out how to use the nanobots to her advantage in battles. If the nanobots can communicate with her in some way, it could help her become more empathetic as she tries to understand their 'feelings' or functions.
One plot idea could be Adam trying to redeem himself through Ruby's influence. Ruby, with her kind heart, could see the good in Adam that he's long forgotten. Another could be a story where they team up to face a common enemy that neither could defeat alone. Maybe a powerful Grimm that has unique abilities.
One idea could be Ruby facing a new type of Grimm that has unique abilities, like the ability to manipulate time in a small area. This would put Ruby in a tough situation where she has to figure out how to combat it while being affected by the time distortion. Another plot could involve Ruby getting lost in a Grimm - infested area and having to rely on her wits and the little resources she has to survive and find her way back to her team.
Perhaps the story could explore how Ruby's pregnancy affects her relationships with her team members. Some might be overly protective, while others could struggle to accept the change in her situation. It could also be interesting to see how her pregnancy impacts her relationship with her weapon and combat abilities.
One idea could be Ruby meeting a wolf Faunus who is initially mistrusted by the group but later proves to be an ally. Maybe the wolf Faunus has a special ability related to tracking that helps Ruby and her team in a mission. Another plot could involve a wolf Faunus who is being hunted by some anti - Faunus group and Ruby decides to protect them, which leads to a series of battles and the exploration of the discrimination against Faunus in the RWBY universe.
One idea could be Ruby discovers a new form of nanotech in a hidden part of Remnant. This nanotech could enhance her Crescent Rose, giving it new abilities like shape - shifting or self - repair.
Well, one plot could be that Ruby's mother faked her death and is actually alive in hiding. Ruby discovers some clues that lead her to believe this and goes on a journey to find her mother. Along the way, she has to face various challenges and enemies who are also after her mother for their own reasons.
Well, one interesting idea could be Ruby's transformation into a Saiyan-like form. It might bring new powers and abilities that she can use in the RWBY universe. Maybe she gains super strength and speed, like Saiyans in the Dragon Ball series.
Maybe in the fanfic, Ruby gets drunk and starts reminiscing about her childhood and how she got into the whole Huntsman business. She could share some really cute and endearing stories that her friends haven't heard before, making for a heart - warming scene. And then she might pass out in an odd position, much to the amusement of the others.
Another plot could involve Ruby and Weiss, in their Futa forms, having to protect a group of innocent Fanus from a powerful enemy. This would test their combat skills as well as their friendship and teamwork. They could also learn more about the discrimination that Fanus face in the world and strive to make a change.