While wandering Tokyo, devastated by earthquakes and rioting, Ken and Dallas encounter each other by chance. They should be enemies - but does DC realize the peril that Earth is in? The line between friend and foe suddenly blurs!
Source: crunchyroll
In an enviromentally wrecked future Tokyo, a young man named Ken Ando joins an organization called DC. Little does he realize that his fate and that of Earth will be linked to a mysterious mecha from another world.