Amidst the chaos of war-torn Japan, the ‘Bahansen’ pirate ships found greater liberty on the open waters of the Seto Inland Sea during the Sengoku period. These vessels, sailing under the Hachiman flag, ventured to distant lands such as China, Korea, Luzon, and Siam. The quest for maritime dominance ignites when an enigmatic survivor of an ancient shipwreck arrives in Sakai, revealing a secret with the potential to alter history’s path. This film, one of Toei’s most eloquently scripted and intellectually engaging, offers a thrilling narrative of samurai adventurers navigating the high seas.