During the chaos and confusion at the end of the Eastern Zhou Dynasty, Wu Zixu and Sun Zi leave their native land of Chu for the land of Wu after their parents are killed. They take an oath of allegiance to fight for King Helü of Wu. The story portrays the life of Sun Zi and the superior art of war that he develops during the two year conflict between Wu and Chu. In 2007, this series was named winner of Japan's first International Manga Award.