Original Author's Message:
After much deliberation, I've decided to drop this story. I recently got married, and while getting married, I was uploading drafts of my writing. After the wedding, my grandfather fell ill and was hospitalized. There were many things to handle, and my writing performance dropped drastically. Especially since switching from a Naruto story to One Piece, the results weren't great. This might also be the consequence of many fanfiction stories carelessly jumping to other worlds—it's very easy to "die" and I'm one of those who "died." There aren't many readers left, so after thinking it over, I decided to just stop.
For my next book, I'll still write it, but whether I'll use this account or a new one, that's not certain yet…
After further thought, I've added a simple ending.
Story's End
(When I said I'd stop, everyone expected the Naruto story to end abruptly. I thought, it's better to write a bit more and give a brief summary of the ending.)
After defeating Enel, Ninja World Shikamaru and the others went to the SMILE Devil Fruit Factory and took ownership of it.
This news reached Doflamingo, who, fearing the Beasts Pirates, didn't dare oppose Shikamaru's group. Soon after, the Empire made new breakthroughs in Devil Fruit research, mastering the mystery of killing Devil Fruit users and regenerating Devil Fruits. They killed Enel, took the Goro Goro no Mi, and gave it to Imperial Kakashi, helping him ascend from peak Super Kage level to the early stage of Sage of the Six Paths.
Later, because Ninja World Shikamaru and others freely spread Ninjutsu, and with Marines and pirates learning it en masse, by the time of the Marineford War, more Empire personnel could enter the pirate world. They sent many Super Kage-level experts, allied with the Beasts Pirates, to join the Marineford War.
When Marshall D. Teach killed Whitebeard, they intervened, ending the battle while abducting Blackbeard to seize the Yami Yami no Mi and Gura Gura no Mi. These two highly powerful fruits allowed Imperial Rock Lee and Imperial Shikamaru to break through to Six Paths level and peak Super Kage level, respectively.
During the Marineford War, Empire members showcased their immense combined Ninjutsu power, earning greater respect in the world. The ninja world's influence continued to invade the pirate world, and time quickly advanced two years.
Although Luffy's crew, due to Ninjutsu's existence, grew much stronger than in the original story, when facing Doflamingo, they aimed to destroy the SMILE Devil Fruit Factory but were crushed by Empire members and forced to retreat. Later, they went to Onigashima, where Kaido utterly defeated them, even after Luffy awakened as Nika, unable to overcome Kaido, ending their pirate journey.
Seeing the time was ripe, the Empire sent Ninja World Naruto and Sasuke, whose power far surpassed anyone in the pirate world, to conquer it and establish it as an Empire branch base.
Afterward, the Empire discovered other anime worlds. After seizing unique abilities from various anime worlds, the Otsutsuki from their homeworld finally detected anomalies in the ninja world and came to investigate. But it was too late—the Empire's members had grown far beyond imagination. The Otsutsuki were no match, even after uniting to recreate the Otsutsuki God, who was defeated by the combined power of the Empire's protagonists.
(The story is roughly like this, heavily abbreviated. Consider it a simple explanation. It's not great, but better than just saying it's dropped.)
Translator's Note:
Wow, I had no idea this novel was dropped by the original author. You know, I saw it listed here: https://m.trxs.cc/tongren/9694.html, marked as complete, so I translated it. What a joke.