The theme of unrequited love that slowly turns into mutual love is also quite common. At first, Sanji might be more openly in love while Nami is focused on other things like treasure or mapping. But over time, through shared experiences and Sanji's consistent care, Nami realizes her own feelings for him, and this transformation is a major aspect in many fanfictions.
I think it might have been a character introduced to add depth to Sanji's backstory and motivations. But without more context, it's hard to say for sure.
Sanji has a complex love story. He is a character full of passion. His love for women is often expressed in a very chivalrous way. For example, he would go to great lengths to protect a lady in distress. His love also seems to be a bit of a hopeless romantic, always dreaming of the perfect love.
Well, without more context about Sanji's story, it's difficult to determine exactly who the little girl is. It could be a childhood acquaintance of Sanji, or perhaps a character he meets during his adventures. Maybe she is someone related to a quest or a mystery in the story.
Sure. One great piece of Sanji and Nami love fanfiction is 'The Heart's Discovery'. It beautifully depicts their relationship development through a series of adventures. Sanji's constant chivalry towards Nami is shown in a very endearing way.
For Nami, her intelligence and cunning are key. She could use her smarts to get Sanji out of trouble in the fanfiction. Also, her love for money and treasure can add an interesting dynamic. For example, she might convince Sanji to go on a dangerous adventure in search of a valuable item, promising him new ingredients for his kitchen.
It can be developed through shared hobbies in the modern world. For instance, if they both like extreme sports, they could bond over skydiving or surfing. This would not only bring them closer but also show a different side of their characters.