Well, in a 'sunken wreckage rwby fanfic', it could be that the sunken wreckage is an old airship from a long - forgotten battle. The RWBY team stumbles upon it while on a journey. Inside the wreckage, they discover secrets about the past of Remnant. There could be old recordings or documents that shed light on some long - lost knowledge. They also have to deal with the unstable structure of the wreckage as they search for these secrets.
Well, a really exciting plot might involve Percy getting trapped in a parallel dimension within the Venator world. He could discover new powers there that are unique to that place. And perhaps there's a prophecy in the Venator world that Percy is a key part of, which would lead to him having to go on a dangerous quest to fulfill it. Also, he could meet a group of Venator characters who initially distrust him but later become his friends as they realize they share a common enemy.
Ruby could be one of the main characters. Given her adventurous spirit, she would be eager to explore the sunken wreckage. Weiss might also be there, using her glyphs to help the team navigate through the difficult underwater environment. Blake could be important too, her stealth skills helping to detect any hidden dangers within the wreckage.
A Venator wizard who can manipulate time could be an interesting addition. He could help Percy in his quests by using his time - manipulation powers to gain an advantage. Another could be a half - Venator, half - demigod character who is conflicted about which world to side with.
πI recommend a novel to you, and that is 'The Spaceship in the Body'. The protagonist of this novel was dying in a dark room. He was using a computer assembled from the wreckage of an alien spaceship to attack another country. Then, due to his illness, aliens appeared to save him and stuffed the alien spaceship into his body. The main story was about the protagonist using the alien spaceship knowledge in his body to create a world different from ordinary people. I hope you like this novel. If you want more information about the novel or other recommendations, please feel free to contact me.π
πI recommend 'Galactic Super Empire' to you! The main character fits your description. After his soul was sucked away by an alien spaceship, he woke up and obtained a mysterious intelligent brain,"ZERO." Later, he also obtained the fragments of the alien spaceship as a weapon to fight against the alien invasion. I hope you like this fairy's recommendation. Muah ~π
The corresponding novel was " Survival on a Desert Island with a Beautiful CEO." After the female chief steward was killed, she and the male protagonist were stranded on a deserted island. The male protagonist wanted to protect her to survive on the deserted island, and the two gradually fell in love.