In the autumn of Konoha Year 63, the Fourth Shinobi World War erupted.
In truth, the countdown to war had begun the day the Konoha Chunin Joint Exams ended.
With the goal of "unifying the entire Shinobi World and ending a thousand years of chaos," the Land of Stars issued an ultimatum to the other nations and ninja villages. This led the four great ninja villages to join forces and form the unprecedented Shinobi Allied Forces, eighty thousand strong, launching a massive offensive from multiple directions against the Land of Stars in the western part of the Shinobi World's continent.
The first battle broke out at the border between the Land of Earth and the Land of Stars.
The focal point of the struggle was Toriga Castle, the concession territory along the border between the two nations, known as the "Gambling City."
It was a modern port city with a population exceeding three hundred thousand.
Five years ago, it had merely been a remote little coastal town. But its unique shoreline had created an excellent deepwater harbor, and it was developed into an important port.
It was later developed into a special gambling city, becoming the most unusual city on the border between the Land of Stars and the Land of Earth in the northern part of the Shinobi World's continent.
After the Will of the Star spread into the Land of Earth, some daimyo and feudal lords felt deeply threatened. They hired samurai, ronin, and even ninja to capture and kill those spreading the Will of the Star.
Thus, this concession became a refuge for those people.
As natural and man-made disasters periodically struck the Land of Earth, countless refugees emerged, and many fleeing civilians also poured into this city.
Over the course of several years, the city grew