Perhaps the OC is an aspiring artist and wants to learn from Konata. The fanfic could explore their journey of improving their art skills while also getting involved in the fun and crazy adventures that the Lucky Star gang usually has.
Another plot could be that the OC has a part - time job at a maid café. The main characters find out and decide to visit. Hilarity ensues as they interact with the OC in this new setting, and the OC has to balance work and friendship.
One idea could be about an OC (Original Character) in the corps who discovers a long - lost Jedi artifact. This discovery could lead to a race against the Sith to obtain it. Another plot could involve an OC with unique Force - related abilities in the corps trying to unite different factions within the Star Wars universe to fight a common enemy like the Yuuzhan Vong. Or perhaps an OC in the corps uncovers a conspiracy within the military ranks that threatens the stability of the galaxy.
One idea could be exploring an OC's (Original Character) journey to become a leader within the 100's post - apocalyptic world. They could start as an outcast and through their unique skills, like advanced medical knowledge or exceptional hunting abilities, gain the respect of different factions.
A mystery - themed 'the oc fanfic' would also be great. Maybe there's a mystery surrounding the Cohen family's wealth or a long - lost relative that suddenly shows up with a hidden agenda. The characters would have to work together to solve the mystery, and in the process, their relationships would be tested and new alliances formed.
One idea could be an OC who is a time - traveler from a parallel dimension where the forces of evil have already won. This OC tries to warn Star and her friends and helps them change the course of events. Another plot could involve an OC with a unique magical ability that neither Star nor the forces of evil have seen before, and this ability becomes crucial in a major battle. Or an OC who is secretly related to one of the main characters and their discovery of this relation causes a stir in the story.
One idea could be creating an OC who is a lost Jedi from an ancient order. They could have unique Force powers that were long forgotten. Another is an OC who is a smuggler with a heart of gold, getting involved in the Rebel Alliance's affairs by accident.
A cool plot could be an OC who has the ability to communicate with Titans in a different way than the normal Seeker. Instead of using the traditional methods, they can enter the Titans' minds and see their memories. This leads to the OC finding out about a hidden danger that threatens all of Huntik, and they have to convince the other Seekers to believe them and take action.
One idea could be an OC who has the power to manipulate time. They could accidentally get stuck in a time loop during a mission with the Incredibles and have to figure out how to break free while also helping the family stop the villain.
One plot idea could be that the OC is a new student at McKinley High. They have a unique talent, like being an amazing dancer who combines different styles. The OC catches Will's attention when they perform in the school talent show. Another idea is that the OC is a music prodigy who has a different approach to teaching music compared to Will. They start collaborating on a special project for the glee club, which causes some interesting dynamics within the club. And a third idea could be that the OC has a mysterious past related to the music industry, and Will helps them face their past demons while also incorporating their experiences into the glee club's performances.
Well, an interesting plot could involve an OC who is a skilled artisan in the Warhammer world. This OC could be commissioned to create a powerful weapon, but during the process, they discover a dark secret about the materials or the person who commissioned it. Maybe an OC who is a diplomat trying to broker peace between two warring factions, but they face many obstacles and betrayals along the way.