On a remote island overseas stood an enormous fortress-like city!
Yet this massive city, which looked like the kind of place only the daimyo of various nations could live in, was actually Hozuki Castle—the prison feared by countless people throughout the Ninja World!
From the outside, the entire city remained brightly lit all year round.
As a prison of the Ninja World, its facilities and buildings had all been jointly funded by the various nations and ninja villages.
Thus, although Hozuki Castle had been established for many years, its buildings and facilities still looked as pristine as if they had just been built!
All to ensure the sturdiness of Hozuki Castle!
At that moment, a large cargo ship was slowly approaching Hozuki Castle.
The people aboard the cargo ship were none other than the higher-ups of Kusagakure, along with Naruto, Karin, and the others.
To avoid unnecessary trouble, Kusagakure would occasionally come here under the pretense of delivering supplies to Hozuki Castle.
Therefore, compared with taking a passenger ship, arriving on a cargo ship seemed much more reasonable.
"So that's Hozuki Castle? It looks just like a castle!"
Standing on the deck of the cargo ship, Naruto could not help sighing as he looked at the massive city on the island.
To prevent Naruto from running away, Karin had been locked inside one of the ship's cabins, guarded by quite a few Kusagakure ninja.
In truth, in order to successfully enter Hozuki Castle, Naruto definitely would not rashly try to rescue Karin under these circumstances.
However, to be safe, the higher-ups of Kusagakure had still separated the two of them.
None of the Kusagakure higher-ups responded to Naruto's remark.
Instead, many of them stared at Hozuki Castle with fanaticism in their eyes.
After all, the founder of this city was