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.
In a fanfiction where Esdeath kidnaps Tatsumi, one possibility is that she tries to force him to join her side. She might use various means like threats against his friends or promises of power. Tatsumi, being a hero at heart, would likely resist. He could try to escape while also trying to figure out Esdeath's weaknesses to defeat her later.
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.
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.
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.
I'm not sure specifically about 'lemon' fanfiction as it often involves inappropriate or adult - themed content. However, there are many regular Tatsumi and Esdeath fanfictions on various fanfiction platforms. You can try Archive of Our Own or Fanfiction.net and search for their relationship - based stories that are more in line with general storytelling and character exploration.
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.
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.
The relationship in a 'Tatsumi and Esdeath married' fanfiction would likely start off on shaky ground. Tatsumi is not fully on board with the marriage, but Esdeath is head - over - heels. As time goes on, Esdeath would use her power to protect Tatsumi, which would start to win him over. Tatsumi, being a good - hearted person, would try to find the good in Esdeath and encourage her to use her power for better things. Their relationship would develop as they face various challenges together. For example, they might have to deal with political intrigue or threats from other powerful individuals. Through these experiences, they would form a bond based on trust, respect, and a growing love for each other.
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.