Before Naruto and Sasuke could fight their way through the world, the protagonist transmigrated into Naruto, endured a series of deadly ordeals, and took control of a System. On his left is Itachi, who can take on Madara one-on-one; on his right is Deidara, who can crush hordes of cannon-fodder ninja. He secretly builds up his forces and turns the Shinobi World upside down.
When the protagonist transmigrated, he broke through the world's barrier, causing fragments of the Sword Demon world to descend into the Shinobi World. The fragments formed worlds of their own, each containing magical beasts.
The protagonist can obtain all kinds of resources by killing magical beasts, which he can use for himself and to train the ninja under his command.
