How can Leviathan's character be developed further in High School DxD fanfiction?

Kiba could be developed by exploring his emotional side more. For example, showing his insecurities about his place in the group. This would make him more relatable.

Livia's character can be developed by giving her more backstory. For example, exploring her family or her past experiences that led her to be in the world of High School DxD. This would make her more relatable.

One way is to explore her family background more. For example, showing how her upbringing in the devil society influenced her leadership style in the student council.

One way to develop her character is to have her learn new skills. For instance, she could start training in martial arts or some form of magic that is accessible to humans in the Highschool DxD world. As she learns, she could face setbacks and challenges that force her to grow both as a fighter and as a person.

Tiamat could be developed further by exploring her relationships with other characters. For instance, if she starts to mentor a young character, it would show a different side of her. She could teach them about her powers and the history of her kind.

One idea could be Leviathan using her unique powers in a new way to solve a mystery within the school. For example, she might use her water - based abilities to uncover hidden passages or secrets. Another could be a story where she forms an unexpected alliance with a character from a different faction to face a common threat.

Fanfiction could also develop Gasper by exploring his relationships in more detail. His friendships, his crushes, or his mentorships. For example, if he has a mentor figure who teaches him how to better control his powers, we can see how that relationship evolves over time and how it impacts Gasper's growth as a character. We can also see how his friendships are tested in tough situations, and how he responds, which would show his loyalty and the values he holds dear.

One way is to introduce a new character who causes some sort of rift between them at first. Maybe a new devil who tries to drive a wedge between Rias and Akeno by spreading false rumors. But then, as they figure out the truth together, they become even closer than before. It would be a journey of trust - building and forgiveness that would enhance their relationship.

Issei's character can be developed by showing his growth in handling his new powers. For example, he could become more strategic in battles rather than relying solely on brute force. Yubelluna's character could be developed by exploring her past. Maybe she has some unresolved traumas that affect her current actions. By delving into these, her personality can become more complex.

Another way to develop their characters is to put them in a situation where they have to make a difficult choice. For instance, they might have to choose between loyalty to their friends or following their hearts. This would force them to grow as individuals and as a pair. Their actions during this time would reveal more about their personalities and values.