Zokuto

Zokuto (ゾクト) was a secondary antagonist in the film Kaiju of Retribution Tatsura.

Background
Zokuto was a dark businessman who mainly buys human slaves and sells them to the black markets in cities and the markets in the Underworld through illegal means. Instead of cooperating with Taimanin, he saw opportunities to expand his business.

Kaiju of Retribution Tatsura
Some time after Yukikaze Mizuki and Rinko Akiyama located and foiled the corrupt politician Muneichi Yazaki, the owner of Under Eden, Real contracted Zokuto to trick the Taimanin by giving them a lead for the investigation of Shiranui, Yukikaze's missing mother.