It has been over 200 years since the occurrence of the Fourth Shinobi World War, with the world still at peace. With Naruto’s generation long gone, the shinobi world has rapidly progressed at becoming a better place. In order to maintain peace, the United Shinobi Nations was formed, an organization where all villages could take part. Their primary goal would be to keep the shinobi world together by employing everybody’s forces.

As time passed, the United Shinobi Nations would expand their organization. They would create three groups: the United Shinobi Police, the United Shinobi Anbu, and the United Shinobi Medics. It would be these three groups that would help rebuild the world. During their peak, each group was getting multiple requests, and the United Shinobi Nations acquired plenty of funds, nearly enough to feed all those hungry and those without homes.

Nobody had to worry any longer. The idea of a threat never crossed people’s mind anymore. However, little did they know, there has always been evil lurking amongst them. Beneath the soil, miles down into the deep and dark subterranean, was the existence of another world. It was a world unlike any other, where cruelty and ruthlessness would be allowed to thrive. It was a place known as the Underworld, and its demons would soon rise from hell.