Well, maybe the setting was crowded and busy, and everyone was focused on their own things. Or the kidnapper might have disguised themselves well and blended in, making it hard to notice the abduction.
It could be that there was a lot of distraction or chaos going on, so people didn't pay attention. Or perhaps the kidnapper used some sort of trick to make it seem like the kid was just moving away on their own.
Well, perhaps there was a situation where two kids were playing near a pool in their backyard. They were so excited to jump in the water quickly that one of them just stripped down right there without thinking much, thinking it was okay to be naked in front of their friend. It was just a spontaneous act of a young child who was more focused on the fun of the pool than on modesty.
Perhaps Kaito Kid kidnaps a fan by mistake. He was aiming for someone else who looked similar, and this fan is just an ordinary person who happened to be in the wrong place at the wrong time. The fan could be really scared at first, but then as they interact with Kaito Kid, they start to see a different side of him. Kaito Kid might then have to figure out how to let the fan go without getting caught himself.
A young journalist who has been writing articles about Kaito Kid and his heists. Kaito Kid kidnaps the journalist to control the narrative. He wants to make sure that the journalist doesn't publish any more information that could give away his next moves or expose his secrets.
Maybe people were just too busy with their own stuff to pay attention. Or the fan fiction wasn't promoted well enough to catch everyone's eye.
The police need to be involved. They should start an immediate investigation, following any leads like eyewitness accounts or ransom demands.
One should always avoid being in any situation that might be misconstrued as related to inappropriate stories about kids. Stay away from any groups or individuals involved in such inappropriate discussions.
Maybe it's due to ignorance. Young kids don't fully understand the concept of privacy, so they might do it without realizing it's inappropriate. Another reason could be a lack of proper guidance from adults around them.
One possible plot twist could be that the kidnappers are actually being controlled by an old enemy of Naruto's village who wants to use him as a bargaining chip to get some ancient scrolls. Another could be that Naruto is kidnapped by someone who thinks he is the key to a powerful jutsu they want to unlock, but in reality, they have the wrong idea about Naruto's abilities. Maybe the kidnappers are from a hidden group within the ninja world that has a grudge against the Uzumaki clan and Naruto specifically.
It could be a new, powerful villain who wants to make a name for themselves by taking out two well - known sidekicks. This villain might have some unique powers or abilities that make it difficult for Robin and Kid Flash to escape.
Well, Hades might try to force Pit into doing his bidding. For example, he could make Pit fight against his own friends. But Pit, being a strong - willed character, would likely try to find a way out of this situation. He might start by trying to find a way to break free from whatever bindings Hades has put on him.