Apocalypse is just the beginning

In 2065,world was integrated into the multiverse.The whole reality for the world and its inhabitants changed. The Earth ceased to be a whole and merged with about 80 different types of planets to form a different planetary layer.

Humanityfled to shelters.For a long time they hide in there.To come back to earth again,humanity started the suicide soldier program.They have no family and no loved ones. They are sent to kill the moment they born.