The demon island "New Slave Island" was known as a facility where abducted women were imprisoned as sex slaves, subjected to training, forced prostitution, and human trafficking. Its mastermind was former politician Yoshida, whose downfall in a bribery scandal led to the island's temporary closure. However, under Matsuo, the new second-generation leader of the Kumo River syndicate, operations have resumed, and a new conspiracy begins to unfold.