The condemned criminals are gathered on the beach to prepare for the expedition to Shinsenkyo, but first, they must reduce their numbers.

Gabimaru, Sagiri, and the others arrive on Shinsenkyo, and their battle for survival begins.

Gabimaru and Sagiri are in trouble during their first fight against the island's mysterious creatures. Gabimaru is unaware of these monstrosities and this puts him at a disadvantage in battle. The sudden arrival of Yuzuriha, the female ninja, will change the situation, but Gabimaru does not see clearly in her game.

Tenza and Nurugai also encounter one of the island's strange denizens with unfathomable power. All seems lost before they encounter another Yamada Asaemon...