In a 'Hotel Transylvania Invisible Man' fanfiction, you could explore the Invisible Man's backstory. Perhaps he was once a normal human who was experimented on and that's how he became invisible. He could be struggling to come to terms with his new form while staying at the hotel. He might find solace in the fact that the other monsters also have unique qualities that set them apart from the human world.
One great idea for a 'Hotel Transylvania Invisible Man' fanfiction could be to focus on how the Invisible Man interacts with the other monsters in the hotel. Maybe he plays pranks on them by using his invisibility in funny ways, like moving objects around without being seen. It could be a light - hearted story full of comical misunderstandings.
In this fanfiction, the Invisible Man could form an unlikely friendship with Mavis. Since she is curious and open - minded, she might be one of the first to reach out to him despite his invisible state. Their friendship could involve Mavis trying to find ways to 'see' the Invisible Man, like using special magic or just getting to know him well enough to sense his presence.
In a fanfiction, perhaps some of the Hotel Transylvania characters could have chakra. Mavis, for example, could discover she has a special type of chakra that gives her the ability to control bats in a new way. She could then go on a journey to the Naruto world to learn more about chakra and meet characters like Kakashi who could teach her about different chakra natures.
One storyline could be that Dennis and Winnie go on a secret adventure outside the hotel. They discover a hidden magical garden filled with strange and wonderful creatures. Dennis, being part - vampire, uses his unique abilities to protect Winnie when they encounter a slightly dangerous but ultimately friendly magical beast. They learn about the importance of friendship and bravery in this new world they've found.
One idea could be that Winnie discovers a hidden part of the hotel that no one else knew about. It could be filled with ancient artifacts or magic that she then shares with the other characters. Another idea is that Winnie has a special power that she doesn't know about until she comes to the Hotel Transylvania, and the other characters help her learn to control it.
Another idea is that the OC is a half - human, half - monster who is rejected by both communities. Dracula takes pity on the OC and offers them a place at the hotel. However, the other monsters are not so welcoming. Dracula has to fight against the prejudice of his own kind to protect the OC. In the process, the OC shows great courage and loyalty, which makes Dracula see them in a new light, and a deep friendship or even a romantic relationship could develop between them.
One interesting aspect of Spider - Man claws fanfiction could be exploring how he uses these claws in combat. Maybe he can use them to scale buildings even faster, or in a more acrobatic way during battles. For example, he could use the claws to grip onto an enemy's weapon and disarm them in a flashy move.
One idea could be that Naruto is on a mission in a world similar to that of Hotel Transylvania. He could encounter the unique creatures there and have to team up with some of the hotel residents, like Dracula, to defeat a common enemy. Maybe an evil ninja has found a way to drain the life force of the supernatural beings in the hotel and Naruto's skills are needed to stop it.
One idea could be that Jonathan discovers a hidden vampire power within himself. Maybe he starts to have visions of ancient vampire battles and uses this knowledge to help Dracula and his friends in a new crisis at the hotel. For example, he could foresee an attack from a group of vampire hunters and use his unique human - vampire hybrid perspective to come up with a clever defense strategy.
Johnny becoming a vampire in the Hotel Transylvania universe could lead to some really interesting scenarios. For example, he might struggle with adapting to vampire life while still maintaining his human charm. He could have a hard time getting used to the nocturnal lifestyle and the need to drink blood, which would be a big change from his regular human habits.
In a fanfiction of Dennis and Winnie, perhaps they decide to explore the outside world. Winnie, being a vampire, has to protect Dennis from the sun. They meet some friendly humans who are surprisingly accepting of them. Dennis starts to realize that he can be a bridge between the human and vampire worlds. They have a lot of fun, like trying human food for the first time and sharing vampire stories with their new friends.