What are some interesting ideas for an Overlord crossover fanfiction?

One idea could be to have the characters from 'Overlord' end up in a different anime world like 'Sword Art Online'. They could interact with the SAO characters, with Ainz Ooal Gown perhaps trying to establish his own guild in the SAO world. Another idea is to cross 'Overlord' with 'Naruto'. Picture the undead minions of Ainz in the Hidden Leaf Village, causing chaos and confusion among the ninja.

One idea could be the characters from RWBY ending up in the world of Overlord. They might initially be confused and have to adapt to the new, more dangerous environment. Maybe Ruby could mistake some of the Overlord's minions for Grimm and attack, causing a stir among the various factions in the Overlord world.

One interesting idea could be the interaction between the different power systems of 'Overlord' and 'Familiar of Zero'. For example, how the magic in 'Familiar of Zero' might interact with the various abilities of the characters in 'Overlord'.

Another plot could involve the Pleiades from Overlord. They end up in Re:Zero and are mistaken for some sort of magical spirits. Subaru tries to enlist their help in his quest to save Emilia. The Pleiades, with their combat skills and unique abilities, could change the power dynamics in the Re:Zero world and also introduce new technologies and magic concepts from Overlord.

Perhaps there could be a villain in the crossover fanfiction that is a threat to both worlds. Saitama and Ainz have to team up to defeat it. Saitama is used to soloing enemies, and Ainz is used to having his minions do the work. So, they have to overcome their differences in fighting styles and learn to work together. Ainz might be in awe of Saitama's sheer strength, and Saitama might be a bit weirded out by the undead nature of Ainz and his minions.

One idea could be to have Ainz Ooal Gown from Overlord end up in the RWBY world. He could be seen as a powerful new force, and his magic and strategic mind would create a lot of interesting scenarios. Maybe he'd form an alliance with one of the academies, or be seen as a threat by Salem and her forces.

One interesting concept could be the combination of different game worlds with the Overlord universe. For example, mashing up Overlord with a fantasy RPG world like Skyrim. Characters from Overlord might interact with the unique races and magic systems in Skyrim, creating new and exciting storylines.

Well, a cool concept is the exploration of new storylines. In Overlord Gate Crossover Fanfiction, we might see the main characters from both series teaming up to face a common threat that neither universe could handle alone. This could lead to some really epic battles and strategic planning. And then there's the idea of character development. Characters from 'Overlord' might learn about concepts like democracy and technology from 'Gate', and vice versa. It can be really fascinating to see how they grow and change as a result of this interaction.

Well, a cool plot could be a fusion of the two power systems. Imagine if ninjas in the Naruto world could learn some of the magic from Overlord. It would completely change the balance of power. Or perhaps the Akatsuki organization teams up with some of the villains in Overlord to take over both worlds. They could combine their resources and knowledge to create a really powerful and evil force. Also, there could be a story where a character from Naruto, like Sasuke, tries to master the power of the Overlord world to become even stronger and seek revenge in a new way.

One interesting idea could be a crossover with "Moana". Elsa's ice powers and Moana's connection to the ocean could create a really cool dynamic. Maybe Elsa accidentally freezes part of Moana's ocean and they have to work together to fix it. Another could be with "Tangled". Rapunzel's long hair and her adventurous spirit combined with Elsa and Anna's journey in Frozen 2 would be exciting. Rapunzel could use her hair to help them climb mountains or cross chasms. A third idea is a crossover with "Beauty and the Beast". Belle's love for books and knowledge could help Elsa understand more about her powers and the history of magic in the Frozen world.