The Old Philosopher of Naruto

Introduction: Philosophy student Uchiha Tetsu traveled to the Warring States period of Naruto and competed with Uchiha Madara and Senju Hashirama in the same age group, but he didn't even have a system!Uchiha Tetsu: "Let me think about it, what are my advantages..." "Yes, my strength is all acquired by practicing on my own little by little!" "Let me think about it again, what are my shortcomings? "My strength is all gained through my own cultivation ╮(╯▽╰)╭..." "Oh, that's right!"