Sawada Tsunayoshi, the tenth generation leader of Vongola, successfully thwarted Bai Lan's ambition after the end of the future chapter. But Vongola's enemies have never disappeared. As the world changes, a transnational criminal organization called the "Twilight Snake" quietly rises. They possess "anti-entropy core" technology that is completely different from the Vongola box weapons. Their leader calls himself "Adam" and claims to establish a chaotic world without order.
