Perhaps the anime girl was kidnapped because she holds a special key or knowledge that the military guards want. She could be from a world where anime rules apply, and her knowledge of that world's magic or technology is what attracted the military's attention. She will then go through a series of adventures within the military compound, making friends with some of the inmates (if there are any) and planning her great escape.
Start with a bang. You could describe the moment of the kidnapping vividly. For instance, 'The anime girl was walking down the dimly lit alley, her long hair flowing in the gentle breeze. Suddenly, a hand clamped over her mouth and she was dragged into the shadows.' This immediately grabs the reader's attention.
One common plot twist could be that the kidnapper turns out to be someone the anime girl thought she could trust, like a seemingly friendly acquaintance. This adds an element of betrayal to the story.
One possible motive could be for experimentation. They might believe the anime girl has unique abilities that could be harnessed for military purposes, such as superhuman strength or special psychic powers.
In fanfiction, if an anime girl is kidnapped by the military, it could lead to a story of rescue. Maybe her friends or some heroic characters will start a mission to save her. They might have to face various challenges set by the military, like security systems and trained soldiers.
One possible plot is that the guy in the van is actually under the control of a more powerful villain. The anime girl, who might be a key figure in the anime's lore, is kidnapped to be used as a bargaining chip. However, during her captivity, she befriends a small creature or another captive in the van. Together, they come up with a plan to escape and expose the real villain behind the kidnapping.
She may start by trying to figure out who the kidnapper is and what his motives are. If she has any special abilities or skills, she would be thinking about how to use them to her advantage. For example, if she has telepathic powers, she could try to send a distress signal to her friends or family. Also, she might try to gain the kidnapper's trust in order to find a moment to escape.
The anime girl might be used as a bargaining chip. If there are different factions in the military or if there is some sort of political turmoil, the group that kidnapped her could use her to gain an advantage. For example, they could threaten to harm her if their demands are not met.
Evil scientists can also be villains in such stories. They might kidnap people for inhumane experiments. They are usually depicted as being obsessed with their research and having little regard for human life. For instance, they could be trying to create some sort of super - human or mutant.
No. Torture and kidnapping are serious and unethical topics in real life. Incorporating them into fanfiction, even in the realm of anime, can be disturbing and promote negative values. It may also be triggering for some readers who have experienced or are sensitive to such real - world traumas.