A person who was even featured in an elementary school ethics textbook The book ``Bushido'' introduced the Japanese way of thinking to people around the world and caused great surprise and excitement. Inazo Nitobe, known as its author, was born at the end of the Edo period. During these turbulent times, he completed his studies and became an educator, educating students at many schools. He later served as Under-Secretary-General of the League of Nations and worked hard for world peace. It depicts the life of Inazo, who was active as an international citizen and was even featured in elementary school moral textbooks.