Ninja World: the Strongest Creature Returns from the Pirate World

Travel through the world of Naruto. Uchiha Gen obtained the double penetration system. Starting with the Kingdom of Rain, returning from the pirate world! … Nagato: "Uchiha Gen, this is a monster that even the Rinnegan can't deal with!" Uchiha Madara: "Who is the strongest person in the Uchiha clan? Nonsense, of course... It's not me!" Jiraiya: "That guy is the strongest ninja surpassing the first Hokage!" Kai: "My physical skills are vulnerable in front of him!" Sage of Six Paths: "If I want to surpass him, I will have to return to my prime!" … Win the Black Zetsu at the start. Uchiha Gen became the Ten-Tails Jinchuuriki: "Black Zetsu's story of saving his mother? Sorry, your journey to save your mother is over here!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.