who kidnapped the empress manga

Well, it could be one of the rivals of the empress or someone with a hidden agenda. Maybe it's related to power struggles or personal vendettas. But it really depends on the specific plot and characters of the manga.

I'm not sure who did it. Maybe it was a rival faction seeking power.

I think it was the evil baron. He wanted to gain power and control over the kingdom by eliminating the empress.

Well, it's hard to say for sure. It could be a rival manga enthusiast who wanted to have it for themselves or a thief looking to make a profit by selling it on the black market. There are so many possibilities!

Papyrus can also be a victim of kidnapping in fanfictions. His naive and friendly nature makes him an easy target in some stories. His kidnapping could lead to Sans going on a desperate search for him, which would involve a lot of action and emotional moments as Sans tries to rescue his brother.

The author of 'Kidnapped' is Robert Louis Stevenson.

I have no idea. Maybe it was someone with a grudge against the teacher.

One common theme could be the struggle for freedom. Since the bride is kidnapped, she would likely fight to regain her autonomy. Another might be the development of unexpected relationships. For example, she may form a bond with her captor or with those who try to rescue her.

Well, usually in such a manga, the girl is held against her will, maybe in a secluded place. There could be attempts to rescue her by friends or heroes, and lots of tension and drama along the way.

It could be that the kidnapping was part of some elaborate prank or a misunderstanding. Maybe the girl thought it was a fun adventure and didn't realize the seriousness at first.