Kim Yoo-jin, who returned to the 1910s for the second time, grasps history with future knowledge. A South Korean company commander died while trying to save a child from a truck rolling down a hill. When I came to my senses, I found myself returning to Kim Yoo-jin, a Korean American in the 1900s, with knowledge of the future. Those who know the future, will they become tycoons, or…? On the eve of World War I and World War II, Kim Yoo-jin vowed to change history by becoming a soldier and entered the West Point Military Academy. That lesser motive over there is Eisenhower, the World War II hero who would later become president of the United States? The flow of history changes according to Kim Yoo-jin’s progress in future knowledge.