There could be an alien with a plant - like appearance that can control nature on Earth in ways that the local supernatural beings can't. It comes to Earth because it senses the unique energy of the Highschool DxD world and wants to study it. Along the way, it gets involved in the various power struggles and forms an unexpected friendship with one of the main characters.
One idea could be an alien race coming to Kuoh Academy with unique powers that the devils, angels and fallen angels have to deal with. For example, an alien race that can manipulate time, causing chaos in battles and daily life.
Well, in this kind of fanfiction, there are often powerful alien leaders who play important roles. They might be initially suspicious of the human but later come to respect them. There are also the alien scientists who study the adopted human, trying to understand human biology and culture. And don't forget the alien outcasts who find common ground with the adopted human. They bond over their shared feelings of not quite fitting in.
The Saiyans are quite popular. They are a well - known alien race from Dragon Ball, but in Naruto fanfiction, they can be re - imagined to fit into the Naruto universe. Their natural fighting abilities and the concept of power levels can add an exciting element to the story.
The unique mix of supernatural elements in Highschool DxD fanfiction makes it stand out. You've got devils, angels, and other mythical creatures all interacting in a high school setting.
An exiled God. He was banished from his own pantheon for some misdeed. In the Highschool DxD world, he is trying to find a way to redeem himself. He has unique powers that are different from the other characters, and his story could be one of redemption and self - discovery as he interacts with the devils, angels, and fallen angels in the story.
Often, there's an intrepid explorer as one of the main characters. This person is brave enough to face the unknown alien world. There might also be a scientist character who is eager to study the aliens and their technology. Another common type is the military figure, who is there to protect the group from any potential threats from the aliens.
The main character is Ellen Ripley, who is well - known for her battles against the aliens. Alongside her, there are the prisoners in the prison planet. These prisoners include Dillon, who becomes an important figure in the fight against the alien. They all contribute to the story's development, with Ripley leading the charge against the alien threat while the prisoners bring in their own set of skills and attitudes, which range from fear and suspicion to courage and loyalty as the situation unfolds.
One of the most popular characters might be the alien ambassador. They are often depicted as having to bridge the gap between their own species and humans. Another could be the human detective who has to solve crimes involving aliens, bringing an element of mystery and intrigue. And of course, there could be a young alien who is trying to adapt to life on Earth and becomes a fan favorite as readers can relate to their struggles of fitting in.
Some of the alien characters themselves, like Heatblast or Four Arms, are also popular. Their unique physical characteristics and powers make them interesting to write about. For instance, Heatblast's ability to control fire can lead to all kinds of scenarios, from battling fire - based villains to using his heat to solve environmental problems in a story.
Gwen would be a great character to pair with Alien X. Her magical abilities could complement Alien X's powers in interesting ways. For instance, when facing a threat that requires both brute omnipotent force and the finesse of magic. Another good pairing could be Kevin. His ability to absorb and use different forms of energy could interact with Alien X's power source in unexpected ways, like when they need to combine their powers to break through a powerful energy barrier.