Soshi Date fights as a Cosmo Warrior in the Sacred Sword War, allied with Kojiro and Musashi Asuka against the Chaos Warriors. He wields the sacred sword Gurenken, which compelled him to enter the conflict and guided him to locate his allies Kojiro and Musashi. As one of the ten designated bearers of a sacred sword, his purpose centers on engaging in battles against the Chaos faction. Alongside fellow Cosmo Warriors, he clashes with enemies in the Holy Land—later revealed as the moon—where the decisive confrontations of the Sacred Sword War unfold.