One potential plot twist could be that Esdeath, instead of being hostile towards Tatsumi, decides to protect him. This would be a huge shift as she is known for her brutality. It could be because she sees something unique in him that makes her want to keep him safe, which would completely change the way Tatsumi views her and the power dynamics between them.
In a fanfiction where Tatsumi meets Esdeath early, one possibility is that Esdeath would immediately be intrigued by Tatsumi. She might see his potential and try to recruit him into her forces right away. Tatsumi, on the other hand, would likely be very cautious as he knows Esdeath's cruel nature. He might try to play along at first to avoid getting killed, but secretly be planning his escape.
In this fanfiction, Tatsumi could be sent on a special mission that requires him to infiltrate Esdeath's inner circle. He disguises himself and gets close to her. Esdeath, who has a sixth sense for these things, suspects Tatsumi but plays along. As they interact more, there is an underlying tension between their opposing ideals, yet also an attraction that neither can fully understand or deny.
It might not be so straightforward. While Esdeath has the potential to be the antagonist, there could be other forces at play. For example, there could be a third party that is manipulating both Tatsumi and Esdeath for their own gain. In this case, both Tatsumi and Esdeath could be seen as victims of this greater evil, and they might have to team up against this new threat. However, if we consider the traditional view, Esdeath's actions and beliefs are in direct conflict with Tatsumi's, so she remains the likely antagonist.
One possible plot could be that Tatsumi and Esdeath, after getting married, try to find a balance between their different ideals. Tatsumi, with his sense of justice, might influence Esdeath to be more empathetic towards the common people. They could face challenges from the political unrest in their world, and together they use their combined strength and influence to bring about positive change in their society. Also, their relationship could be a source of conflict among different factions who either oppose or try to use their union for their own gains.
In certain fanfiction works, Tatsumi is indeed made into Esdeath's pet. This can be a way for writers to explore darker or more extreme versions of their relationship. It might involve Esdeath treating Tatsumi in a demeaning way at times, or it could also lead to a strange form of affection developing between them as the story progresses. It really varies from one fanfic to another.
Tatsumi would likely react with defiance. He's a brave character and wouldn't easily submit to Esdeath's kidnapping. He might try to fight back right away if he has the chance.
A potential plot twist could be that Roger is actually a time - traveler. He came from the past to meet Luffy for a specific purpose, like to prevent a great disaster in the pirate world that only Luffy can help with in the future.
One common theme is the struggle with their different personalities. Tatsumi is often portrayed as more kind - hearted, while Esdeath is cruel. So when she becomes pregnant, there might be a theme of her learning to be more empathetic. Another theme could be the protection of the unborn child, with Tatsumi taking on a more protective role.
A potential plot development could be that Kushina helps Naruto master his nine - tails chakra much sooner. She has a connection to the nine - tails as its former jinchuriki, so she could teach Naruto how to better coexist with it and use its power more effectively.
One potential plot twist could be that Gine reveals that Goku has a special power that was hidden even from the Saiyan elites. This could completely change how Goku views himself and his capabilities.