The unique aspect could be the combination of the magical world of Harry Potter with a character named Sienna Khan. It might bring in new storylines and character dynamics that we don't usually see in the original Harry Potter series.
I'm not sure specifically about 'Harry Potter x Sienna Khan fanfic'. But you can try searching on some popular fanfic websites like Archive of Our Own. There might be some interesting works there.
There might be some fanfics out there that take inappropriate directions with characters like Sienna. But it's not in the spirit of the RWBY series which promotes strong, empowered characters. We should encourage fanfic writers to uphold the values of the original work and avoid creating such distasteful content.
Magic exploration is also a prevalent theme. Since it's a fairy tail related fanfiction, Sienna usually gets involved in exploring different types of magic, whether it's a new form of magic she discovers or trying to understand the mysteries behind existing magic. Adventure is yet another common theme. Sienna embarks on various quests and travels to different and often dangerous places in these stories.
I'm not very familiar with this specific novel. It could be a story about Alpha Aiden and Sienna, perhaps in a fantasy or paranormal setting where Alpha might refer to a werewolf pack leader or some sort of dominant character. Without reading it, it's hard to say exactly what it's about.
Since we don't know the 'walter khan original story', it's hard to say who Walter Khan is. He could be the protagonist, an antagonist, or just a side character in the story.
I'm not familiar with the love story of Ajmal Khan and Jumana Khan. However, in a general sense, their story could have begun with a chance encounter. Perhaps Ajmal noticed Jumana's kindness or beauty first. They could have then started to spend more time together, sharing their dreams and interests, which led to a deepening of their connection and the development of love.
Well, Shahrukh Khan and Gauri Khan's love story began a long time ago. They got to know each other, and their connection grew into love. Shahrukh's rise to stardom didn't change their relationship. Gauri was there with him every step of the way. Their love story is one of loyalty and mutual respect. They have a family together and are an example of a strong and loving couple in the entertainment industry.