Freelance photographer with a free-spirited attitude, who is trying to document the illegal activities of the Japanese underworld, and especially those of Ryuichi Asami.

Prominent figure in the Japanese underworld, the mysterious and controlling Asami becomes fascinated with Takaba after their initial run-in, and attempts to capture him for his own personal use.

Prominent member of a powerful Chinese Mafia family, who has a checkered past with Asami, and also becomes interested in Takaba because of his affiliation with Asami.