A fanfic could explore a scenario where there is a rift between Draven and Darius. Perhaps due to differences in their methods of leadership or how they view Noxus' future. The story could then focus on how they overcome these differences and reunite to face a common enemy that threatens Noxus.
First, do some research on the characters. Know their personalities, backstories, and how they interact in the original lore. For example, Draven is known for his showmanship and Darius for his stoic leadership. Then, think of an interesting premise like a conflict or a shared goal. You could start with a scene that showcases their relationship right away, like a heated argument or a moment of mutual respect on the battlefield.
One idea could be exploring the origin of Alien X's powers. Maybe there was an ancient alien race that bestowed these powers and the story could delve into that backstory.
One idea could be a story where Spiderman has to team up with his greatest enemies to fight a new, more powerful threat from outer space. This would force him to put aside his differences and find common ground with the likes of Doctor Octopus and Green Goblin.
Another interesting concept could be a story about Naruto visiting Starfire's world. He could be amazed by the different technology and culture there, while Starfire is intrigued by Naruto's ninja skills and his chakra.
Perhaps they could meet at a music festival. Asha is lost among the crowds and Starboy helps her find her way. This leads to them spending more time together, sharing their dreams and aspirations in the music industry. They then decide to form a duo for a special performance at the festival.
One idea could be that Shrek and Shaggy meet in a magical forest that's a cross between Shrek's swamp area and the spooky woods where Shaggy often has his adventures. They could team up to find a special ingredient for a potion that would solve a problem in both of their worlds, like a drought in Shrek's land and a monster invasion in Shaggy's.
One idea could be a story where Luffy and Sanji get separated from the crew during a battle and have to rely on each other to survive on a strange island. They could discover new types of food that only Sanji can cook and Luffy can't resist, leading to some comical and heartwarming moments.
One idea could be that they go on an adventure together in a new, uncharted part of their world. They face various challenges like crossing a big river or climbing a steep mountain. Along the way, they learn more about each other's strengths and weaknesses and their friendship grows deeper.
One idea could be a story where Monomi and Monokuma are forced to work together on a task in the school. Despite their differences, they start to understand each other better. Another could be a fanfic set in an alternate universe where they are friends from the start and go on adventures together in the school. Maybe a story where Monomi tries to reform Monokuma and slowly changes his evil ways.
One idea could be a story where Jin and Mugen have to team up against a powerful common enemy. They start off not getting along well, as is their nature, but as they face challenges together, they gradually learn to respect each other's skills and develop a deep bond.