One common theme is the exploration of different dueling universes. Since Jaden is from 'Yu - Gi - Oh! GX', crossovers often take him to other 'Yu - Gi - Oh!' series or even other card - game - based anime worlds to experience new dueling rules and challenges.
One popular Jaden Yuki crossover fanfiction is the one where he crosses over into the 'Yu - Gi - Oh! GX' world with characters from 'Yu - Gi - Oh! 5D's'. It's really interesting as it combines different dueling styles and storylines. The author does a great job of integrating the characters and their unique abilities.
Well, in some fanfictions, Jaden Yuki might not directly fight the wicked gods. Instead, he could be trying to understand their motives. He might befriend some characters who have knowledge about the wicked gods and through that knowledge, he tries to find a way to either co - exist or stop their evil plans.
Romance is also quite prevalent. It could be a love story between female Jaden and another character from the series, like Syrus or Chazz. The authors often put their own spin on how the relationship develops.
One common antagonist could be the Society of Light. In fanfiction, they might target Jaden more aggressively than in the original series. They could try to manipulate him or harm him to further their own goals of 'purifying' the Duel Academy. Another antagonist could be a rogue duelist who has a vendetta against Jaden for his success. This duelist might use underhanded tactics to try and hurt Jaden during duels, not just aiming to win but also to cause him physical or emotional pain.
One popular theme could be Jaden facing emotional hurt from the loss of a duel. In many fanfictions, his confidence takes a hit when he loses to a powerful opponent. This can lead to him doubting his skills and going through an internal struggle to regain his mojo. Another theme might be him getting hurt physically during a dangerous adventure in the spirit world. He could be injured while trying to protect his friends or while exploring uncharted areas. And sometimes, the hurt can be more psychological, like when he feels betrayed by someone he trusted within the Duel Academy.
A common theme is friendship turning into love. The OC and Jaden start off as friends, maybe sharing a love for dueling, and then their relationship deepens over time. Another theme is the OC helping Jaden through tough times, like when he faces difficult opponents or personal challenges at Duel Academy.
Another possibility is that the fanfiction is set in an alternate universe. In this universe, the little sister has some special powers related to the Duel Monsters world that no one else has. She uses these powers to help Jaden and his friends save the world from an evil force that wants to misuse the power of the Duel Monsters cards. This could involve a lot of action - filled duels and exciting adventures.
First, know the character of Jaden Yuki well. Read up on his backstory, his mannerisms, and his relationships in the original series. This will help you create a more believable interaction with the reader. For the 'lemon' part, if you choose to include it, be subtle and build up to it. Don't just jump into it right away. Use descriptive language to set the mood and the emotions between Jaden and the reader.
One exciting plot could be Jaden facing a new and powerful opponent who uses a never - seen - before deck. This would test his skills and force him to come up with new strategies. Another plot might involve Jaden traveling to a different dimension where the rules of Duel Monsters are slightly different, adding an extra layer of challenge.