Can you give examples of plotlines in 'adopted by default one piece fanfiction'?

Well, one interesting aspect could be the unique character relationships. In One Piece fanfiction, new bonds can be formed. Maybe the 'adopted by default' part implies an unexpected family - like situation among the characters. For example, a character who was previously alone might find themselves part of a new crew or group in a way that's not typical in the original story.

One plotline could be that Harry discovers a hidden diary of Kitiara's and it reveals secrets that set him on a quest to protect her legacy.

Definitely. The cover story about Buggy's adventures in the East Blue after he split from the Straw Hats is quite engaging. We get to see how he builds his own little empire in a comical yet interesting way. And then there's the cover story that delved into the past of some of the fish - men characters, which was great for understanding their culture and history better.

One plotline could be Naruto being the only one who can tame the Juubi. So, he has to go on a journey to master the Juubi's power and use it for good. Another could be that the Juubi is somehow split into different parts, and Naruto has to find all the parts to prevent an evil force from using it to destroy the world.

One example is 'The Lord of the Rings' by J.R.R. Tolkien. There are many set pieces in it, such as the battle at Helm's Deep. It is a very detailed and intense scene that has a major impact on the story. Another is 'Pride and Prejudice' by Jane Austen. The ball scenes are set pieces where we see the characters interact in a very specific social setting.

One plotline could be that Richonne discovers their baby is allergic to a certain type of baby formula. So they start a journey to find a suitable alternative, meeting various characters along the way who either help or hinder them in their search.

A possible plotline is that there is a hidden village in the Naruto world that is built around the worship and use of dragon lacrima. The main characters, like Sasuke and Naruto, are invited to this village for a tournament. During the tournament, they discover a conspiracy involving the misuse of dragon lacrima that could endanger the entire Naruto world.

One plotline could be that a young wolf in the pack discovers a lemon tree and the lemons have the power to give the wolves the ability to communicate with other animals. So, the pack has to protect this lemon tree from other predators who want to use the lemons for their own gain.

One plotline could be that Draco tries to find the source of the curse himself. He embarks on a journey, facing various obstacles and meeting different characters along the way who either help or hinder his progress.

One plotline could be that Naruto discovers he has Blue Lantern powers. He then has to learn how to control them while still maintaining his ninja skills. Another could be that the Naruto world is facing a new threat that can only be defeated by the power of hope, so Naruto as a Blue Lantern steps up to the challenge.