Terra Formars is a Japanese manga series written by Yū Sasuga and illustrated by Kenichi Tachibana. In an attempt to colonize Mars and terraforming the planet, cockroaches ware sent by scientists in 21st century.
Five hundred years later, Mars cockroaches have mutated giant humanoid “Terraformars”. The genetically modified humans are sent to Mars to exterminate the mutated roaches.
*List of Japanese subculture