Date Masamune is one of the famous SAMURAI in the Sengoku era.
He lost the right eye by illness in his childhood.
For that reason, he is called "Dokuganryuu"(one-eyed dragon).
He is known because he was very brave.
As soon as he became daimyou of the land of Dewa(current Yamagata prefecture), he defeated enemies of the neighborhood one after another.
However, by the time he started showing his excellence, Toyotomi Hideyoshi had almost conquered Japan.
Although he yielded to Toyotomi Hideyoshi at last, if he had been born a few years earlier, he could have changed the history of Japan.