Naruto's Strongest Dungeon System

He transmigrates into the world of Naruto and activates the System. With the System at his side, he quickly makes a name for himself. Completing missions is easy, and the rewards are generous. Most importantly, he fulfills the wishes of the previous Hokage, and the rewards are enormous too. He gradually becomes the strongest in the world of Naruto, then transmigrates to various other worlds, including those of One Piece and Journey to the West...

This novel and its characters are entirely fictional. Any resemblance to actual people or events is purely coincidental. Do not imitate.