Lost One

In a world where monsters called "Celestials" that can only be seen in nightmares exist and power that mankind can't achieve. A power that serves to be an act of mercy of the Seven Pillars of Existence. The very existence that people think was the sole reason of this chaos. This so called power that people around this world manifests was titled "Dominion" due to its power to rule.

Every single human being was given this power to fight against the Celestials. However, one unlucky boy was an exception to this power. It was Sonzai Toriwake or more widely known as the "Lost One". A quiet yet loving boy who always follows his beloved childhood friend and lover Lili Manami, the "Killer Goddess".

Everything was going fine between them. Until...