One interesting storyline could be the Necron Lord OC's struggle to regain their former glory in a universe that has changed much since their slumber. They might have to face new and powerful enemies while also trying to unite the disparate Necron factions under their rule.
In some fanfictions, Eldar characters might be paired with a Necron Lord OC. This creates an interesting dynamic as the Eldar are a very different and ancient race. They could be either enemies, with the Necron Lord OC seeing the Eldar as a threat to their plans, or they could form a tenuous alliance based on a shared goal, like stopping a Chaos incursion.
One popular Necron OC is 'Xarion'. He is often depicted as a Necron lord who has regained some of his former emotions and uses his strategic mind to outwit his enemies. Another is 'Lythia', a female Necron who has a unique bond with a group of Eldar. She tries to find a balance between the Necron's cold logic and the Eldar's more fluid way of thinking.
The appearance and customization of Necron OCs can be really cool in fanfiction. They could have different color schemes or unique body modifications compared to the standard Necrons. For instance, an OC might have a more organic - looking part on their body as a remnant of their pre - Necron existence. Their personality also matters. A Necron OC could be more curious about the galaxy than the typical emotionless Necrons, leading them to explore places and engage in situations that normal Necrons wouldn't.
Sure, there is an Overlord manga. It expands on the story and characters from the original light novel series, giving fans another way to enjoy the world of Overlord.
The tenth volume of Overlord was the fourth volume of Overlord, which told the story of the battle between the protagonist, Shatia, and the Bone King on the Tarasha Continent. As a demigod, Bone King had extraordinary strength and skills, while Shatiya was a female mage with powerful magic abilities.
In the tenth scroll, Bone King and Shatiya had a fierce battle. Bone King used his strength and skills to continuously attack Shatia in an attempt to defeat her. Shatia kept casting magic to control Bone King's power and finally defeated him. In this battle, Shatiya displayed her strength and wisdom, bringing victory to the entire Tarasha Continent.
There are also fanfictions that create entirely new story arcs within the Overlord universe. They might introduce new powerful enemies or allies for Ainz. Such fanfictions can be exciting as they take the familiar world of Overlord and twist it in unexpected ways.
Yes, the ones that explore the political intrigue in the New World. They often involve Ainz using his intelligence and power to navigate through complex political situations, which is really fascinating.