God of Ninjutsu Iruka

Iruka, who became a ninja school teacher, received a strange system that not only allowed him to simultaneously obtain the cultivation of his disciples, but also gave him some strange books from time to time. "The Republic", "The Prince", "The Theory of Rich Nations", "War and Peace", "Basics of Mathematics", "Theoretical Mechanics", "Material Mechanics", "The Analects", "Sun Tzu's Art of War"... Iruka felt that he was just more serious about his students. He didn't know why others said that with him, there would be real peace in the ninja world. Also known as "The Famous Ninja Master Iruka" and "Kaguya, do you want to be my disciple?".