Senkou no Ikusu -Disorder Eclipse- The Motion Anime

As a result of the great war that occurred in the past, the earth was so heavily polluted that it became uninhabitable. Humanity gradually declined in numbers. The surviving people used nanotechnologies accumulated during the war and built a huge city-state with low pollution levels. People lived in this city, gradually cleaning it from pollution, and the population began to recover.

As the population grew, construction of new cities began in other places, and records of the war and technologies that hindered humanity's recovery were sealed and destroyed. In the hope that future people would not repeat the same mistakes.

Time passed. And everyone forgot about the great war.

At first glance, everyone lived peacefully, but chaos and unrest began to simmer in the shadow of the city.

To combat dissent, guards were created who suppressed any such actions and maintained peace in the city.

The Relic Control Division of the Administration. Young ace Koga and his partner Ixus fought criminals day and night.