One possible storyline is that Steven, being his curious self, somehow ends up in the Undertale universe. He meets Frisk at the start and they begin an adventure together. Steven is amazed by the different types of monsters and how they live. The Crystal Gems, worried about Steven, find a way to also enter the Undertale world. Then, they all have to deal with the complex moral choices that are often presented in Undertale, like whether to fight or spare the monsters. Along the way, Steven's positive attitude starts to influence the characters in Undertale, and they in turn show him new ways to use his gem powers.
One interesting storyline could be where Steven's gem powers interact with the magic in the Undertale world. For example, his ability to heal might have a unique effect on the monsters in Undertale. Maybe he could heal some of the more damaged monsters and in turn, they help him understand their world better. Another could be a story where the characters from both universes team up to face a common threat. The Sans and Papyrus from Undertale could join forces with Steven and the Crystal Gems to fight against a powerful enemy that is a threat to both their worlds. It would be really cool to see how their different fighting styles and powers work together.
A great storyline in a Steven Universe and Undertale crossover fanfiction might involve the concept of determination. In Undertale, determination is a powerful force, and in Steven Universe, Steven has a lot of willpower. So, perhaps a story where Steven's strong will is recognized as a form of determination in the Undertale world. This could lead to some really interesting interactions, like him being able to save and reload in the same way as the characters in Undertale. Or, there could be a story where the gems from Steven Universe get trapped in the Underground of Undertale, and they have to find their way out by interacting with the various monsters and characters there.
To write this kind of fanfic, start with a strong hook. Maybe start with Steven waking up in the Underground or Frisk arriving on Earth near Beach City. Then, build the story gradually. Show how the characters react to the new environment and each other. Don't forget to add some action and conflict. It could be a battle between the Gems and some of the more aggressive monsters from Undertale. And make sure to stay true to the essence of both universes. Don't change the core personalities of the characters too much. This way, fans of both shows will be able to enjoy your fanfic.
A possible Undertale and Steven Universe crossover fanfic could be really interesting. It might involve characters from both universes meeting in a strange new world. For example, Steven could end up in the Underground from Undertale. He would probably try to use his powers of peace and love to resolve conflicts there, like how he does in his own show. Maybe he'd meet Sans and Papyrus, and there could be some really funny interactions. Sans with his laid - back attitude and Steven's positive energy would make for a great comical duo.
A really cool storyline in a Naruto - DC crossover fanfiction could be the idea of Naruto characters training DC heroes in the ways of chakra. Superman, for example, could learn to control chakra and use it to enhance his already superhuman abilities. Or, a story where the Justice League has to deal with the political intrigue of the Hidden Villages in Naruto's world. It would be a clash of two very different political systems. Also, a storyline where a Naruto character like Sasuke becomes a sort of anti - hero in the DC Universe, causing chaos among the heroes and villains alike could be fascinating.
In a Steven Universe and Undertale crossover fanfiction, the characters' personalities would blend in some fascinating ways. Steven's open - mindedness would allow him to accept the strange and wonderful aspects of the Undertale world without much hesitation. His friendly nature would make him approachable to all the characters there. Ruby and Sapphire, who make up Garnet, have very different personalities. Ruby's hot - headedness and Sapphire's calmness could create some interesting interactions. In Undertale, characters like Undyne, who is very passionate about her beliefs, might either clash or find common ground with Ruby. Meanwhile, Sapphire's ability to foresee possible futures could be a very valuable asset in the unpredictable world of Undertale, and she could use it to help the group make better decisions.
Peridot is quite popular too. Her unique personality, especially her growth from a somewhat antagonist to a more friendly character, makes for great storytelling in crossovers. In a crossover with 'Ben 10', Peridot's technological knowledge could be paired with Ben's Omnitrix - related adventures.
Steven himself would be very interesting. His kind - hearted nature and unique powers would stand out among the Avengers. He could bring a new perspective to the team.
I think it would be Ben. His ability to transform into various aliens brings a lot of possibilities. He can be a tough fighter like Rath or a strategic thinker like Grey Matter. In the crossover, seeing how he interacts with the Gems and Steven would be really fascinating.
Well, a great crossover concept could be the heroes from One Punch Man training with the Crystal Gems. Imagine Genos learning about gem magic from Garnet or Pearl. It would be a whole new experience for him. Also, the idea of Steven trying to understand Saitama's non -chalant attitude towards his incredible power could be really fun to write about. Maybe Steven could even try to find a way to make Saitama care more about his reputation as a hero, like he does for himself in his own universe.
One creative storyline could be where the characters from Batim end up in the Underground of Undertale. Maybe Bendy and his crew are mistaken for strange monsters by the Undertale characters at first. They then have to navigate through the various areas of the Underground, facing challenges like the puzzles in the ruins or the battles in Snowdin, all while trying to find a way back to their own world. Another idea is that the Ink Machine from Batim somehow gets connected to the Determination power in Undertale, causing all sorts of wacky and unexpected interactions between the two universes.
Pearl would be an interesting character to include. Her grace and combat skills, combined with her complex backstory, could add depth to any crossover. In a crossover with a historical - themed show, Pearl's knowledge of different eras could create interesting storylines. Another interesting character is Garnet. Her fusion status and stoic nature can lead to unique interactions, especially in a crossover with a show that also has characters with dual identities or special powers.