A good way to develop their relationship is through a common goal that is different from what the other characters in the BlazBlue world are aiming for. Let's say they both want to uncover an ancient mystery that has been long forgotten. Working together towards this goal, they face various challenges. In the face of these difficulties, they support each other, argue, and ultimately grow closer. Terumi might show a more vulnerable side to Trinity during these tough times, and Trinity might be the one to encourage Terumi to keep going, thus deepening their relationship.
It can start with a chance encounter. For example, they meet during a chaotic battle. Terumi is initially intrigued by Trinity's power or her unique personality traits. This initial spark can lead to more interactions where they gradually learn more about each other.
One idea could be that Terumi and Trinity are forced to team up against a common enemy. Maybe a new, powerful force emerges in the BlazBlue universe that threatens both of their interests. They start off distrusting each other but gradually learn to work together and in the process, develop an unexpected bond.
Jin could also be a great crossover character with Terumi. Jin's ice powers contrast with Terumi's dark powers. They could be pitted against a common enemy that requires them to combine their skills, which would be interesting to explore as they have different motives.
Their relationship can be developed through shared experiences. For example, going on dangerous adventures together. When they face life - threatening situations, they'll learn to trust and rely on each other more. Another way is through communication. If they open up about their pasts, fears, and dreams, it'll bring them closer.
Communication is key. In the fanfiction, they could have deep conversations about their dreams, fears, and past traumas. Laslow might share his experiences as a wandering mercenary, and Corrin could talk about her complex family situation. Through these exchanges, they would understand each other better and draw closer. Another aspect could be through acts of self - sacrifice. If one of them is in danger and the other risks their life to save them, it would strengthen their bond significantly.
Another way is through sacrifice. If Orihime sacrifices something important for the sake of an Espada, or vice versa, it can deepen their relationship. This act of selflessness can show the depth of their feelings for each other and be a turning point in their relationship within the fanfiction.
The relationship can be developed through shared experiences. For example, they could go on a joint mission to retrieve an important artifact. During this mission, they face various challenges together, which helps them bond. They might have to trust each other with their lives, and this deepens their connection.
By showing them having heart - to - heart conversations. For example, they could talk about their experiences growing up as demigods, their fears, and their hopes. This would deepen their connection.
By creating more shared experiences. For example, they could go on a journey together to find a special item or to help someone. During this journey, they would face challenges and have to rely on each other, which would strengthen their bond.
The relationship can be developed through shared missions. When they are on a mission together, they can rely on each other's skills and learn from one another. For example, Naruto's vast combat experience can help Sarada in tough battles, and Sarada's fresh perspective can give Naruto new ideas.
In fanfiction, their relationship can be developed through shared experiences. For example, they could be trapped in a mysterious dimension together. During their time there, they have to rely on each other to survive, which makes them trust one another more.