You could write a fanfic that focuses on Ichigo's training in a game - like scenario. Maybe he has to complete a series of challenging quests to gain new powers or unlock hidden abilities.
The combination of two very different universes makes it interesting. Ichigo's powers from his own world are so unique compared to the normal characters in Game of Thrones. It creates a whole new dynamic in the story.
First, decide on the basic premise. For example, if you want to do a time - travel story, figure out how Ichigo gets sent back or forward in time in the game world. Then, create an outline of the main events.
One great 'Ichigo Game of Thrones fanfic' could be 'Ichigo in Westeros'. It has an interesting plot where Ichigo is transported to the world of Game of Thrones and has to use his Soul Reaper powers in a different way. He gets involved in the power struggles between the different houses, which makes for a really exciting read.
Ichigo would probably be devastated. His trust in relationships would be severely shaken. He might become more withdrawn and focus even more on his battles and training, using it as an escape from the pain of the betrayal. He could also become more cynical about love and people in general.
Rukia is also a popular character in ichigo game fanfiction. Her relationship with Ichigo, whether it's a deepening friendship or a potential romantic interest, is often explored in these stories. She has her own unique powers and personality that make her an interesting addition to any fan - created plot.
Uryu could be another supporter. Despite their differences in the past, Uryu has come to respect Ichigo. In this strange situation, he might use his intelligence to help Ichigo. For example, he could research any possible side - effects or solutions related to the mpreg. Orihime is also a strong candidate. She has feelings for Ichigo and would be very empathetic. She would likely offer her healing powers and motherly - like care to Ichigo during his pregnancy.
Ichigo would likely be defiant. He's a fighter and would not easily submit to Aizen. He'd probably be constantly looking for a way to escape and would be sizing up Aizen's every move, trying to find a weakness.
Luffy from One Piece is also a common pairing. Luffy's carefree and adventurous nature combined with Ichigo's more serious and duty - bound personality would lead to some really fun and unpredictable interactions. They could be on a quest in a crossover world, with Luffy's devil fruit powers and Ichigo's Soul Reaper abilities working together in strange and amazing ways.
The relationship can be developed through shared experiences. For example, if they face a difficult battle together, they will start to rely on each other more. This can break down the initial barriers between them. Another way is through communication. If they start to talk about their feelings, fears, and goals, they will understand each other better.