Well, in such a fanfiction, there could be various hints. Maybe Zoro's behavior might be more in line with typical female characteristics described in that specific fictional world, like being more empathetic or having different social interactions compared to the original male - character version. But it really depends on how the author has crafted the story.
Zoro.to might have manga, but it's often associated with copyright infringement and potential security risks. It's better to use legitimate platforms for reading manga.
Another interesting one is 'Sabo's Return: With Ace'. In this story, Sabo returns much earlier than in the original story. It details how he and Ace reunite and the impact it has on the Straw Hat crew and the overall One Piece world. The story is full of action and heart - warming moments between the two.
I really like the fanfictions that involve Ace, Whitebeard and Sabo. They are such interesting characters. In many of these fanfictions, the relationship between them is explored in great depth. For example, how Sabo copes with having Ace as his 'brother' again after thinking he was dead. And Whitebeard's role as a father figure to them adds another layer of complexity and warmth to the stories.
One of the main attractions of this type of fanfiction is the chance to delve deeper into the characters' psyches. Ace and Sabo have complex backstories, and when we add the 'Back Scream' concept, it's like opening a Pandora's box of emotions. For instance, we might see how Ace's memories of his mother influence his actions, and how Sabo's memories of his noble family's rejection shape his view of the world. These memories, with the added intensity of the 'Back Scream', can create a very engaging story.