Terra Formars Vol. 18 (manga)

A year has passed since the survivors of the Annex mission to Mars returned to Earth. But the war with the Terraformars is far from over! The struggle continues in secret, deep beneath the streets of Tokyo. Akari, now working for a private security firm, looks for dangerous new ways to seek out and destroy the Terraformars before the world is overwhelmed by the alien cockroaches from Mars!