jinbei sees shirahoshi

There's also 'Shirahoshi in the Ninja World'. This one is different as it brings Shirahoshi into the main Naruto world. She has to adapt to the land - based ninja culture, and there are a lot of funny and heart - warming moments as Naruto helps her. It's a very creative take on the two characters.

Yes, there are quite a few out there. You can start by looking on popular fanfiction websites like FanFiction.net or Archive of Our Own. Just search for 'luffy and shirahoshi love' and you'll likely find some interesting reads.

Yes, Jinbei does join the Straw Hats in the manga.

Jinbei doesn't die in the One Piece manga. The manga keeps him as an active and significant character, contributing to the adventures and battles.

You can start by looking on fanfiction.net. It has a large collection of fan - made stories, and there are likely to be quite a few 'Naruto Shirahoshi' ones there. Just use the search bar and type in the relevant keywords.

One common theme is protection. Luffy is often portrayed as Shirahoshi's protector, which then blossoms into love. Another theme could be the contrast between their worlds, with Luffy being a pirate and Shirahoshi a princess of the mermaids.

One common theme is friendship. Luffy is known for making strong bonds, and with Shirahoshi, it's no different. Their friendship is often explored, like how they support each other.

The OC could be a young inventor who comes to Fish - Man Island to study its unique technology. There, they meet Shirahoshi. The OC creates a device that helps Shirahoshi communicate more easily with the surface - dwellers. In return, Shirahoshi shows the OC the hidden secrets of the Fish - Man Island, and they form a strong friendship that transcends the differences between humans and fish - men.

Yes, Jinbei does join Luffy's crew in the manga.

You can try fanfiction websites like Archive of Our Own (AO3). It has a large collection of One Piece fanfictions, including those about Luffy and Shirahoshi. Just use the search function and type in the relevant tags.