One Piece: Developing the Most Useless Devil Fruit for Ten Years from the Start

No system! I'm not going with the ship!!! Since this isn't a direct copy of One Piece, it will include some settings not found in the original series, such as the ranking system for Sea Kings and Haki levels. Of course, this isn't fiction; it's a summary based on the anime. No one is perfect, so please point out any errors. The original protagonist's storyline will not change much.

The author has their own unique perspective on the One Piece world, and their strong adherence to the protagonist's individuality is commendable. Perhaps due to the generally unfriendly reviews during the writing process, the book is relatively short, but most plot holes are filled later.

Anyway, this one is much better than those system-based ones. I prefer this kind of slow-development approach; those systems that are all-powerful from the start are just not interesting. I hope the author can update it soon.

Not bad. Although he suddenly became invincible for no apparent reason, the fact that he remained silent and isolated for so long is truly remarkable—he's a modern-day Robinson Crusoe! Overall, though, it's quite good. It avoids the typical cliché plot and kept me reading the whole thing. While the writing style is slightly lacking, it's far superior to those stories that start off with a perfect premise but end up in the palace! Worth reading!

Actually, this novel is quite good, just too short. And the power level increases incredibly fast, almost like somersaults! It's a good read, and the plot is quite interesting, especially the novel concept of using sea turtles as ships. The first 30 chapters are fairly stable, but after chapter 30, the rapid increase in power levels seems to get a bit out of control, and the situation gets…

It's really good! I don't know why it got such a low score. The plot and setting feel very reasonable. I personally think it's great. I hope the author can add a side story or something, like introducing the protagonist's wedding or their leisurely married life. I'll still give it five stars as usual. I hope the author will continue to work hard and create even greater success!

Actually, One Piece could have ended once it was finished, and the rating would have been even higher. But I still like it this way; at least I've found my home. Keep up the good work, author! Keep publishing, and I hope the next book gets an even higher rating.

I've already finished reading it. It ended quite early on. The protagonist had a tough time in the beginning, but by chapters 30 or 40, he was invincible. Actually, I think if the author had set the Devil Fruit's power to be unusable outside of a planet, they could have written much more, showing the protagonist's development in space, etc. But the author probably didn't want to write that anymore, given how many people have said so…

I feel okay so far.

This book is worth reading for its thought-provoking content. The protagonist's personality is top-tier in One Piece, unlike other novels where the protagonist starts with unparalleled talent and an invincible system. This book's protagonist is a normal person placed in an unfamiliar environment, lacking special talents, and the question is how ordinary talents rise to prominence.