If Percy joined Luke, it might complicate the dynamics. Maybe they'd have to face new challenges together or deal with the reactions of other characters. It could really shake things up!
In the 'Luke Joins the Academy Fanfiction', it's possible that Luke discovers a hidden talent within himself while at the academy. This could lead to him getting special attention from the teachers or being selected for a unique project. He may also develop a rivalry with another student which adds drama to the story.
This would be a huge twist. It might mean Luke is seduced by the dark side's power or has some ulterior motive for joining Vader. It could change the course of the entire story.
Well, in some fanfictions, Luke might be possessive of Percy because he sees Percy as a symbol of power or potential. He may want to control Percy to use his abilities for his own goals, like in the original story where Luke has his own dark motives. Also, it could be out of envy. Percy has things that Luke might feel he lacks, so his possessiveness could be a way to try and take what Percy has for himself.
One possible plot could be that Luke is disillusioned with the Rebellion after some major setbacks. Maybe he discovers some secrets about the Rebellion that make him question their motives. So, he decides to join the Empire in the hope of bringing about change from within. He might start off by using his Jedi skills to gain favor among the Imperial ranks.
If Luke joins the Dark Side, it would completely change the dynamic of the Star Wars universe. His friends would be shocked and heartbroken. Leia, for instance, would probably try to bring him back. The Rebellion would lose a great hope and the Empire might gain an unexpected and powerful ally. It could also lead to a different kind of struggle within the galaxy as those who once believed in Luke now have to face him as an enemy.
Redemption is also a big theme. Luke made some bad choices, and fanfiction often explores if he can be redeemed, with Percy sometimes being the key to that redemption. It gives a chance to rewrite his story in a more positive light.
One great 'Percy, Annabeth, and Luke' fanfiction is 'The Bonds of Prophecy'. It delves deep into their complex relationships. Percy's loyalty, Annabeth's intelligence, and Luke's inner turmoil are all explored in a really engaging way. The story also has some great action scenes that keep you on the edge of your seat.
Percy might love fanfiction because it offers new and exciting adventures that are different from his own but still related to his world. It gives him a chance to see different interpretations of his friends, himself, and the events he's been through.