Shun would also be a good choice. His calm and strategic nature would serve him well in the unpredictable situations that come with time travel. He might be more interested in exploring the historical aspects of Bakugan in different time periods and uncovering secrets that could benefit the present.
Maybe a young journalist. They are curious and eager to discover the truth. In the fanfiction, they could travel back in time to the Treaty of Versailles and report on the events as they unfold. They might expose some behind - the - scenes secrets that could change the outcome of the treaty.
Shido could be an obvious choice as the main character. Since he has a special connection with the spirits in the original story, his time - traveling adventures could add new dimensions to his relationships with them. He could go back in time to understand the origins of the spirits better and find new ways to save them.
A young WW1 infantryman would make a great main character. He could represent the 'old - school' values and combat style of WW1. When he travels to WW2, he has to adapt to the new warfare, and his journey of adaptation could be very interesting to follow.
John Lennon could be the main character. He was such an iconic figure in The Beatles and had a very creative and out - of - the - box thinking. His journey through time could be filled with self - discovery and new musical inspirations.
Issei would be a popular choice. Since he is the main character in the original series, having him time travel would create many interesting storylines. He could use his knowledge of future events and his growth as a character to change things in the past.
Perhaps a time - traveling agent sent from the future. Their mission could be to study the decline of ancient Egypt and try to find solutions to prevent it. This would make for an interesting story as they interact with the people of the past, from the slaves to the pharaohs, all while trying to fulfill their mission.
It could be Nagisa. Since he is one of the central characters in the original series, he would make a great time - traveling protagonist. He could travel back in time to gain more skills or knowledge to better assassinate Koro - sensei, or he might go forward in time to see the consequences of their actions in the classroom.
A scientist involved in the Halo Wars technology could be the main character. They might be accidentally sent into the future while working on some time - travel experiment related to the war. In the future, they could use their scientific knowledge to understand the new technologies and perhaps find a way to reverse some of the negative effects of the long - running war.
It could be a distant relative of the Ingalls family. Maybe someone who discovers a family heirloom that has some sort of time - traveling power. They use it to go back and experience life with their ancestors on the prairie.
A scientist could be the main character. He might have been working on a top - secret time travel project and something goes wrong. As a result, he has to become the repairman, using his scientific knowledge to correct the problems in time. He could be an expert in quantum physics or some other relevant field.