Ichigo can be developed by giving him new powers or abilities related to his connection with the goddess. This could be a way to show his evolution in the fanfiction. The goddess, on the other hand, can be developed by exploring her backstory. Why is she in the human world? What are her goals? By answering these questions, her character becomes more complex and interesting.
Rukia, on the other hand, can be developed by exploring her cultural background more. Since she's from a different world, her reactions to the more 'lemon - like' or romantic situations could be influenced by her Soul Reaper upbringing. For example, she might initially be more reserved but then gradually open up as she falls deeper in love with Ichigo.
Hollow Ichigo's character development could involve him gradually learning to control his power in a more positive way. He could start to use his Hollow abilities not just for fighting but also for protecting. Dark Rukia could be developed by having her face the consequences of her dark actions. This could lead to a journey of self - discovery where she tries to find a balance between her dark and light sides.
Ichigo could develop a darker side to his personality. He might be more isolated at first, but Orihime's love and kindness slowly draw him back. Orihime, on the other hand, could gain new powers related to vampires that change her perception of herself and her role in their relationship.
The new addition to their family could also make them more open about their feelings for each other. They might realize how much they truly care for one another while watching their baby grow. This could lead to more affectionate moments between them and a more solid romantic relationship.
Another way is to put them in a completely new environment, like a different dimension where the rules are different. In this new setting, they have to depend on each other more. Shirosaki might have to use his wild nature to help them adapt, while Ichigo uses his sense of justice to find a way out. Through these interactions, their relationship can grow and change.
Their relationship can be developed through shared experiences. For example, if they are both stranded on an island, they have to work together to survive. This would force them to communicate and understand each other better.
The relationship could develop through shared experiences. For example, if they both get trapped in a strange dimension in the Bleach world. They have to rely on each other to survive. Ichigo could teach Femichigo about his human side, and Femichigo could show Ichigo new ways to use his spiritual power. This mutual exchange would bring them closer together.
Ichigo could start to take more interest in Orihime's hobbies and vice versa. This would show that they are not just a couple who love each other, but also friends who want to know each other better. For instance, if Orihime likes cooking, Ichigo could start to learn cooking from her and they could have some lovely family dinners together.
For Ichigo, his character could be developed by exploring his inner turmoil more deeply. Maybe he struggles with the idea of being half - human, half - Shinigami in a different way. As for Rukia, she could be developed by showing more of her past, like her early days in the Soul Society before she met Ichigo. This would give more depth to her character.
The cat goddess could be developed by giving her a complex backstory. For instance, she could have been a normal cat once who was blessed by a powerful force. This backstory would add depth to her character.