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.
Their relationship in the Zoro x Sanji Christmas fanfic could be presented through a series of challenges and reconciliations. For instance, when they are tasked with getting a Christmas tree for the ship. Zoro wants to just chop down the first tree he sees, but Sanji has very specific requirements. They argue, but then realize that by combining their ideas, they can get the perfect tree. This pattern of arguing and then coming together could be repeated throughout the Christmas celebration, showing the complexity and depth of their relationship.
One character that would fit well is Robin. Her knowledge of the world and its secrets could be relevant if there's some mystery involved in the Zoro - Mihawk relationship. Brook, with his unique personality and his own skills as a swordsman, could also be included. He could have some interesting conversations with Zoro and Mihawk about swordsmanship. And Shanks, as a great swordsman himself and a significant figure in the One Piece world, could potentially play a role in the story, perhaps as an old acquaintance of Mihawk.
One day, Zoro got lost as usual on the ship. Nami found him and instead of scolding, she showed him the way with a smile. Since then, Zoro started to notice Nami more. Their relationship grew slowly as they fought side by side against enemies. Zoro would always protect Nami in battles, and Nami would patch up Zoro's wounds after. It was a quiet, budding love story.
A Zoro and Robin pregnant fanfiction might explore how their different personalities would handle the situation. Zoro, with his tough exterior but loyal heart, would be a strong support for Robin, who is intelligent and calm. The story could focus on how they balance their roles within the Straw Hat crew while also dealing with the impending arrival of their baby. It could also show how their relationship changes from being comrades to partners in a more domestic sense, with new challenges and joys along the way.