Isoroku Yamamoto is a character from the Rance series, a popular Japanese visual novel franchise. She is a skilled warrior and leader, known for her strategic prowess and combat abilities. In the series, Isoroku plays a pivotal role in the Sengoku Rance storyline, where she serves as a general and a potential ally or adversary to the protagonist, Rance. Her character is depicted as disciplined, honorable, and deeply committed to her country's welfare, often facing moral dilemmas in the chaotic world of war and conquest.