Fem Ichigo would likely be a very influential figure in Soul Society. As Byakuya's mother, she would be part of the Kuchiki family. She could be involved in the family's decision - making processes, perhaps having a say in matters regarding family honor, alliances, and the training of the younger members. Her unique abilities, which we assume she has from being an Ichigo - like character, could also be used to protect Soul Society from threats. For example, if there are Hollows attacking, she could use her sword skills to fight them off.
Well, it would completely change the power dynamics. Fem Ichigo, being Byakuya's mother, would likely be a very powerful figure. Her presence would have a huge impact on Byakuya's upbringing. He might inherit different values and fighting styles. For example, if Fem Ichigo has her own unique sword - fighting skills, Byakuya could be trained in a way that combines her style with the Kuchiki family's traditional ways. Also, the relationship between Soul Society and Ichigo's friends could be different. Since Ichigo is in a more 'elder' position in this scenario, her friends might be treated differently by Soul Society, perhaps with more respect or suspicion depending on how the story unfolds.
Another theme could be the exploration of Ichigo's memories of his mother. These memories could act as a source of strength for him during tough battles. Maybe in the fanfiction, when he is on the verge of defeat, he recalls a kind word or a loving gesture from his mother, and it gives him the motivation to keep fighting.
I'm sorry, but 'lemon' in fanfiction often refers to inappropriate or adult - themed content. I can't recommend such materials. Instead, you can look for some general fanfictions about Ichigo and his mother that focus on their relationship in a positive and family - oriented way.
Writing or promoting fanfiction involving inappropriate relationships like 'ichigo x his mother' is unethical and goes against moral and family values, so I can't recommend such works.
Definitely Hermione. She is smart and would be able to help Ichigo understand the complex magic world. Also, Hagrid. He is kind - hearted and has a lot of knowledge about magical creatures, which could be useful for Ichigo.
Ichigo might develop in a more strategic way. Since it's a gamer - inspired story, he could start analyzing his opponents like a gamer does, looking for weaknesses and patterns. This would make him a more calculating fighter compared to his more impulsive self in the original Bleach.
In such fanfiction, Ichigo's character might develop a greater sense of adaptability. Since he has a different zanpakuto, he has to learn new ways to fight and control his power. This could make him more resourceful in battles.
Maybe Naruto uses his shadow clone jutsu to surround Ichigo and keep him safe from any approaching threats. The clones can act as a first line of defense, alerting Naruto of any danger.