What are some interesting plot ideas for a Black Butler and Soul Eater crossover fanfiction?

Maybe Mifune's code of honor clashes with the more chaotic and rule - bending nature of some of the Soul Eater characters. For example, he might not approve of how Black Star is so eager for glory and fame without following proper protocol. This could lead to interesting character development and story arcs for both sides.

One idea could be that Naruto characters are transported to the Soul Eater world. Naruto's determination could be a great asset in the battle against Kishin Eggs. He might use his shadow clones to surround and overpower the enemies. Another plot could involve the weapons from Soul Eater trying to learn Naruto's ninjutsu. For example, Soul could be interested in the Rasengan and try to incorporate it into his fighting style. Also, Maka's strong sense of justice would blend well with the Naruto characters' values, and they could team up to take on powerful foes together.

Another plot could involve a character from Soul Eater accidentally getting a Hollow - like power and the characters from Bleach having to help them control it. This would be a great way to explore the different power systems in both universes. Soul Eater characters could learn about the inner world of the Zanpakuto from the Bleach side, and in return, the Bleach characters could gain insights into the complex relationships between meisters and their weapons.

Perhaps in this crossover, Asura's power is somehow transferred to one of the weapons in the Soul Eater world. This weapon then becomes an uncontrollable force, and the meister has to find a way to either contain or purge the Asura - like power within it. It could also cause a rift between the meister and their friends as they struggle to deal with this new, dangerous situation.

A cool plot for a 'Black Butler' crossover fanfiction might be a crossover with 'Kuroshitsuji' and 'Death Note'. Light Yagami could somehow cross paths with Ciel and Sebastian. Light might see Ciel as a means to an end in his grand scheme of creating a new world order, while Sebastian would be intrigued by Light's Death Note and the power it holds. It would be a battle of wits between them, with Ciel caught in the middle, trying to figure out how to use this situation to his advantage.

One idea could be that the characters from Fairy Tail and Soul Eater end up in a shared world where they have to team up to defeat a new, powerful dark force. For example, Natsu from Fairy Tail and Maka from Soul Eater could form an unlikely duo, with Natsu's fire power and Maka's scythe - wielding skills combining in unique ways during battles.

One idea could be that the Fairy Tail mages are sent to the world of Soul Eater on a mission. They could team up with the students from the DWMA to fight a common enemy, like a powerful dark mage who has somehow made a pact with a Kishin. The Fairy Tail members' magic could interact in unexpected ways with the Soul Eater weapons and Meister abilities. For example, Natsu's fire magic might enhance the power of a fire - based weapon in Soul Eater.

Perhaps in this crossover, the concept of the tailed beasts in Naruto are related to the Kishin in Soul Eater. The tailed beasts are seen as powerful and dangerous entities, much like the Kishin. A group of characters from both universes, including Naruto, Maka, and Soul, come together to find a way to either control or destroy these powerful forces that threaten both their worlds. They would have to learn from each other's strengths and weaknesses to succeed.

The interactions would also depend on the setting of the crossover. If it's set in the world of Black Butler, the Soul Eater characters would have to adapt to the Victorian - era society. Maka, for instance, might be frustrated by the strict social norms while trying to hunt for kishin eggs. The Black Butler characters would be in charge and would likely view the Soul Eater characters as outsiders at first. However, as they work together against common threats, they would start to understand and respect each other. If it's set in Soul Eater's Death City, the Black Butler characters would be in a more modern and chaotic environment, which would be a big change for them.

A great plot idea is that the reapers from Black Butler somehow cross over to Gotham. They start interfering with the natural order there, which catches the attention of the Batfam. The Batfam initially mistakes them for some new, super - powered villains. Meanwhile, Sebastian is following the reapers to bring them back to their own realm and gets tangled up with the Batfam in the process. And what if Ciel was sent to Gotham on a mission by the Queen and he has to work with the Batfam to complete it.