保元之乱

On the late night of July 10, 1156, military meetings are held at both sides, the former Emperor Sutoku and the reigning Emperor Go-Shirakawa, where the two forces react differently on whether to launch a night attack on their enemy or not. On July 11, the battle between the two finally breaks out--the Hogen Rebellion. The battle is not simply a dispute over the Imperial succession, it is also the outbreak of interfamilial conflicts of the Fujiwara, Minamoto and Taira families.