Their relationship could develop uniquely if Issei starts to teach Ophis about human emotions more deeply. Since Ophis is a powerful being, she may not fully understand all the nuances of love. Issei could show her through simple acts like sharing his favorite food or taking her to a place that has special meaning to him.
A unique development could be that they form a pact that not only binds their powers but also their hearts. This pact would have some unforeseen consequences, like being able to feel each other's emotions more strongly. As they deal with these new sensations, their relationship evolves. They might have to learn to control their shared emotions while also growing closer together.
One great Issei and Ophis fanfiction could be where they team up to face a new powerful enemy. In this type of story, their unique abilities combine in interesting ways. For example, Issei's boosted gear and Ophis's dragon powers could create some really cool fight scenes. It might also explore their relationship further, perhaps showing how they grow to trust each other more on a deeper level.
Often, their relationship is depicted as a somewhat unlikely pairing at first. Issei is a perverted but kind - hearted guy, while Ophis is a very powerful and somewhat aloof dragon. So, it starts with a lot of misunderstandings, like Ophis not understanding Issei's human quirks.
In fanfiction, Ophis and Issei could have a mentor - mentee relationship. Ophis is extremely powerful, and she might take Issei under her wing to help him grow stronger. This could involve her teaching him about his powers and how to better control his devil abilities.
For Issei, in fanfiction, he could be developed by giving him new powers. For example, he could gain some of Ophis' power in a special encounter. This would not only make him stronger but also force him to learn how to control and use it, which could lead to a more mature Issei. His relationships could also be developed further. With Ophis, he could start to understand her better and become more than just an acquaintance.
It could start with them being forced to work together on a mission. At first, they might clash due to their different personalities. Issei is more impulsive and Yubelluna is more reserved. But as they face difficulties during the mission, they start to understand each other better. For instance, when Issei rushes into a fight without a proper plan, Yubelluna scolds him but also helps him out. This back - and - forth gradually turns into a more affectionate relationship.
Their relationship could start as comrades in arms. As they face challenges together, they begin to respect each other's skills. Then, gradually, they might develop a friendship based on mutual trust. Eventually, it could turn into a romantic relationship as they discover more about each other's personalities and what they truly care about.
Their relationship could develop realistically through communication. For example, they start by sharing their dreams and fears. Issei might talk about his goal to become a powerful devil, and Kuroka could open up about her past traumas. As they become more comfortable with each other, small gestures like holding hands or a gentle touch on the shoulder could gradually lead to deeper feelings.
Their relationship could develop further through shared challenges. For instance, if they face a really tough opponent together, they'll learn more about each other's strengths and weaknesses, and that can deepen their bond. Another way is through communication. If Issei starts to open up more about his insecurities and Rias does the same, they can become closer on an emotional level.
In many fanfictions, their relationship starts with Ophis being intrigued by Issei's tenacity. Issei, being the fearless character he is, catches Ophis' attention. Then, as they interact more, Ophis begins to understand human emotions better through Issei. Their relationship develops as Ophis learns to trust Issei and Issei comes to respect Ophis' power and wisdom.
One interesting plot idea could be Issei and Ophis going on a journey through different dimensions to find a way to strengthen their bond. Maybe they encounter various mythical creatures and have to overcome challenges together. Another could be a situation where they are forced to hide their relationship from the other characters in the Highschool DxD world, adding a bit of secrecy and drama.