Kaijin Kaihatsubu no Kuroitsu-san

Kaijin Kaihatsubu no Kuroitsu-san, authored by Hiroaki Mizusaki, began serialization in 2019 on the Comic Meteor web platform. The series was conceived as a workplace comedy centered on the Agastya secret society, shifting the focus of the traditional sentai genre away from the heroes and toward the underpaid, overworked developmental staff responsible for creating the monsters of the week.

Mizusaki's design approach relies on the juxtaposition of high-stakes corporate bureaucracy with the inherently absurd task of engineering combat-ready creatures. By grounding the narrative in the mundane realities of office life—such as project deadlines and budget constraints—the work provides a satirical look at the creative labor often hidden behind popular entertainment tropes.