A common theme is the exploration of their dual natures. Since Ichigo has his own powers and the female hollow ichigo has her unique hollow characteristics, fanfictions often play with how these two different yet connected aspects interact.
I'm not sure of the exact name, but there's a fanfiction where female hollow ichigo gets separated from Ichigo during a battle. It then follows her own adventure to find her way back to him, while Ichigo is also searching for her. It's a story full of action and their unspoken bond.
One idea could be a story where Ichigo saves a female Quincy from a powerful enemy. They start off as strangers but gradually develop feelings as she recovers under his protection. They then team up to face more threats together, with their relationship growing stronger through shared battles and experiences.
One idea could be that the female Zanpakuto has a unique personality. For example, she could be sassy and constantly tease Ichigo while also being fiercely protective of him. In the fanfiction, she might have her own backstory, like being created from an ancient power that was sealed away for centuries until Ichigo awakened her.
The pairing is significant as it offers a fresh take on the original story. It combines two very different characters, Ichigo with his human - like qualities and Ulquiorra with her more other - worldly, often - aloof nature. This creates a contrast that can lead to engaging storylines. It also allows fans to explore gender - swapped versions of existing characters in new contexts.
Well, the relationship in such fanfiction could be full of tension. Ichigo, being the protagonist with his own set of values, and a female Ulquiorra, who might retain some of the original Ulquiorra's traits like mystery and power. Their interactions could be centered around battles, at first, but then shift towards a more emotional connection as the story progresses. Maybe she challenges his beliefs and he in turn makes her question her own nature.
One interesting fanfiction could be 'The Bond of Female Ichigo and Hichigo'. In it, the relationship between female Ichigo and Hichigo is explored in a new way. They might face challenges together and their interactions are quite different from the original story. It shows how a female Ichigo would deal with the presence of Hichigo within her.
One common theme is the idea of two very different personalities coming together. Ichigo is often impulsive and hot - headed, while Byakuya (even as a female) is more reserved and composed. Their interactions based on these differences can lead to interesting character dynamics.
The setting often plays an important role. Whether it's in the human world or the Soul Society, the environment can shape their relationship. In some fanfictions, the danger of the Soul Society pushes them together to survive. It's like they are two pieces of a puzzle that fit in the chaotic world they live in.
The theme of trust also frequently appears. Given the nature of Aizen's character in the original series, a female Aizen in fanfiction would likely have an issue with others trusting her. Ichigo, with his trusting nature, has to decide whether or not to put his faith in her. This creates a lot of tension and drama in the fanfictions.