Possible themes in 'Mulan Kidnapped' fanfiction could be trust. She may have to decide who to trust in order to get out of the situation. Additionally, the theme of justice could be present. If she discovers who is behind the kidnapping, she may strive for justice. Another theme could be friendship. Maybe she meets new allies during her captivity and forms strong bonds with them as they work together to escape.
The themes could include survival. Mulan would have to use her wits and skills to survive the kidnapping situation. Also, loyalty might be a theme. Her loyalty to her family and friends could drive her to fight back or find a way out. There could also be a theme of self - discovery. In the face of this new and dangerous situation, she might learn new things about herself and her capabilities.
There could be. Fanfiction is a very diverse genre, and given the popularity of the Mulan story, it's not unlikely that someone has written a story with a 'Mulan Kidnapped' plot. However, the quality and nature of such fanfictions can vary greatly. Some might be more action - oriented, while others could focus on the emotional journey of Mulan in such a situation.
One theme could be captivity and freedom. The kidnapped character is obviously in a state of captivity, and the story might be about their journey towards freedom. Another theme could be identity, as the Winter Soldier has a complex identity, and the kidnapped character might have to figure out who he really is. And there could also be a theme of trust, whether the kidnapped character can trust the Winter Soldier or not.
One possible plotline could be that Zoro is kidnapped by an enemy from his past who wants revenge. Maybe a pirate he defeated before has come back with a stronger crew and takes Zoro to lure the rest of the Straw Hats. Another could be that he's kidnapped by a secret organization that wants to use his strength for their own purposes.
Perhaps they could become begrudging allies. If there was a greater threat to both their peoples, they might have to work together. Shan Yu would be hesitant at first, but Mulan's strong sense of justice could sway him over time. For example, if a third, more powerful enemy emerged, they could join forces to defeat it, with Mulan teaching Shan Yu about honor and Shan Yu teaching Mulan about the ways of the Huns in a strategic sense.
One possible motive could be Bellatrix's loyalty to Voldemort. She might think that by kidnapping Hermione, she can get information about Harry Potter and the Order of the Phoenix. Hermione is known to be very intelligent and Bellatrix could believe she has valuable knowledge. For example, Hermione might know the location of Potter or the Order's plans against Voldemort.
One possible motive could be to use Hermione as a bargaining chip against Harry Potter. Since Hermione is his close friend, the kidnappers might think they can force Harry to do something, like give up a powerful magical item or valuable information.
One possible plot could be that Dumbledore has been possessed by a dark entity. Under its influence, he kidnaps Hermione thinking she has some knowledge or power that the entity wants. Hermione then has to use her wits to try and break Dumbledore free from the possession while also trying to escape.
One plotline could be that they are kidnapped by a common enemy who wants to use their powers for some evil purpose. Maybe this enemy plans to extract the Mew Aqua from Ichigo and use Kisshu's alien technology.
A plot could be that Aurora is in a deep sleep again due to a new curse. Mulan, who has heard tales of a sleeping princess, comes to the rescue. She battles the forces that guard Aurora's castle using her martial arts skills. Once she reaches Aurora, she discovers that the only way to break the curse is through a combination of Mulan's courage and Aurora's purity. So, Mulan has to go on a quest to find a magical item while protecting Aurora's sleeping form. In the end, they break the curse together and become friends who vow to protect each other's kingdoms.
It could be Drakken. He's always trying to defeat Kim and might think kidnapping her is the ultimate way to get the upper hand. He could be planning to ransom her back to her family or use her to carry out his evil plans.