Yes, it can be quite popular. Naruto is from the Naruto series and Esdeath is from Akame ga Kill. Combining them in a love fanfiction creates an interesting crossover. Fans enjoy exploring the dynamic between two very different characters from distinct universes. It allows for creative interpretations of how their personalities would interact in a romantic context.
First, understand the characters well. Naruto is all about friendship and his dream to be Hokage. Esdeath is a powerful and cold - hearted general. So, find a way to make their relationship believable. Maybe start with how they meet, like in a strange new dimension. Then, show how they gradually change each other. For Naruto, he might try to warm Esdeath's cold heart, and for Esdeath, she could be intrigued by Naruto's unwavering beliefs.
If Naruto is Esdeath's brother in fanfiction, they could embark on adventures across different dimensions. Since Naruto has experience with his own world and Esdeath with hers, they could explore new lands together. They might encounter strange creatures and powerful enemies. Along the way, they could learn from each other's fighting styles and abilities, Naruto teaching Esdeath about chakra and she teaching him about her own brand of combat techniques. And they could also be on a quest to reunite their fragmented family or uncover a long - hidden family secret that has the power to change their worlds.
Some characters might adapt well due to their own desires for power. For example, Sasuke could see the peerage system as a means to gain more strength to achieve his revenge. He would likely be drawn to Esdeath's strength and might be willing to submit to her in order to learn from her combat skills.
Well, in this fanfiction, Naruto could join Esdeath in her military campaigns. Since Naruto has his own set of powerful jutsu, he could be a great asset. The plot could revolve around how Naruto adapts to the new world's rules and politics. He might be shocked by the harshness of Esdeath's world but still tries to bring some of his positive values. They could form an unlikely alliance, and Naruto's presence could start to change the power dynamics in Esdeath's territory.
One interesting crossover could be Naruto using his shadow clone jutsu in Esdeath's world. He could send clones to gather information about the Empire while he tries to understand the political situation there. Another could be Esdeath being intrigued by Naruto's determination and chakra power, and she might try to recruit him for her own purposes.
Well, one possibility could be that Naruto inherits some of Esdeath's cold and calculating nature. Maybe he uses her strategic mind to outwit his enemies in the Naruto universe. He could also have some unique abilities related to ice, like Esdeath does.
One key element is the clash of their worlds. Naruto is from a world full of ninjas and chakra, while Esdeath is from a more medieval - like world in her original story. Their different power systems and how they interact with each other are often explored.
The Akatsuki could still be major antagonists. Their goals of collecting the tailed beasts would put them in direct conflict with Naruto, especially if he has the added power from his relation to Esdeath. They might see him as an even greater threat.
In some fanfictions, the plot could revolve around Naruto introducing new forms of combat training to Esdeath's peerage, inspired by his training with Jiraiya. This could lead to the peerage becoming stronger and more versatile. Also, there could be a plot where the peerage has to protect Naruto from those in their world who see him as a threat, due to his unknown powers and origin.