Overall, Sailor Moon Crystal adheres closely to the manga. Some minor details might differ for the sake of animation or pacing, but the core elements remain the same.
Some of the well - liked 'Sailor Moon Crystal Fanfiction' are the ones that involve crossovers. Picture Sailor Moon and her friends meeting characters from other popular anime series. It creates a whole new dynamic and storylines. Also, there are fanfictions that deal with the growth and development of the characters outside of the main plot of Sailor Moon Crystal. For instance, how they handle normal high school life while still being Sailor Scouts.
In general, Sailor Moon Crystal is a faithful adaptation. It keeps the key elements and storylines from the manga intact. However, there might be some minor tweaks for the sake of animation or to enhance the viewing experience.
Sailor Moon Crystal is generally considered to be a fairly close adaptation. There are a few minor tweaks and additions for the sake of animation, but the core story remains intact.
First, you should re - watch Sailor Moon Crystal to get a fresh understanding of the characters, their personalities, and the overall world. Then, think of an interesting concept. It could be something like a new villain or a different origin story for one of the Sailor Scouts. Next, start with a simple outline of your story, including the beginning, middle, and end.
The Sailor Stars in the Sailor Moon manga are not transgender. The manga portrays their genders consistently without any indication of them being transgender.