There's also 'Zeref's Unlikely Companion'. In this fanfic, the OC is a healer who stumbles upon Zeref. It shows how their relationship develops from initial fear and suspicion to something more complex. The author does a good job of building tension and chemistry between them.
First, you need to develop your OC. Decide on their appearance, personality, and backstory. For example, if your OC is a strong - willed mage, you can think about what led them to cross paths with Zeref. Then, plan the plot. Maybe start with an unexpected encounter between Zeref and your OC.
Well, start by getting a clear picture of Zeref's character. Is he the brooding, dark figure? Then, your OC should be someone who can either complement or contrast with him. For instance, if your OC is very optimistic, how will that play off against Zeref's pessimism? When writing their interactions, use vivid descriptions. Describe their facial expressions, the tone of their voices. Also, plot is important. Maybe start with a simple encounter and then build up to a more complex relationship as the story progresses. You can also add some side characters that will influence the relationship between Zeref and the OC.
One great 'zeref x oc fanfiction' is 'Zeref's Unlikely Bond'. It has a well - developed OC that challenges Zeref's dark nature. Another good one could be 'In Zeref's World with an OC' which focuses on how the OC adapts to Zeref's world. And 'Zeref and the Mysterious OC' is also popular for its unique plot twists.
Typically, it might explore a different side of the characters. Maybe it shows Zeref from a female perspective, which could bring new interpretations of his powers and motives. And for Nirvana, it could add new dimensions to the story.
A believable OC for a Sekirei x oc fanfic should have a motivation that drives them. It could be as simple as curiosity about the Sekirei. Their reaction to the Sekirei world is crucial. If they are shocked at first but then gradually adapt, it shows character development. Also, think about their moral code. Are they a do - gooder or more of a neutral character? This will determine how they interact with the Sekirei. For example, a morally upright OC might try to protect the innocent Sekirei from being used in the Plan, while a more neutral OC might just be observing and trying to stay out of trouble at first.
One great 'X Men OC X Jean Fanfic' is 'The New Mutant Among Them'. It focuses on an original character who has unique powers and their relationship with Jean. The story does a great job of integrating the OC into the X - Men universe and exploring their connection with Jean's complex character.
There's also 'Zeref's Secret Affair with the Reader' which focuses on a more clandestine relationship. The author of this fanfiction might play with the idea of secrecy and the thrill that comes with it, making it an interesting read for fans of this pairing.
Another theme could be the power dynamics between them. Zeref is a very powerful character, and Roubaul also has his own abilities. Fanfics might explore how a female version of Zeref would interact with Roubaul in terms of power, whether it's cooperation, competition, or something in between.