It was a world where people could be tools..all this was decided at birth. There were guns and their owners. There were both conventional weapons and dangerous ones for all mankind. People were already advanced and moved freely through the worlds. Here is a group called "Haseyrs" consisting of the strongest leader with the power of the sun, a couple of weapon owners, like the weapons themselves, and the smartest scientist who was the weapon. And one day they discovered the most dangerous weapon. It was a thin and fragile-looking black braid. But it was a real reaper that was capable of destroying multiple worlds at once. They sheathed it and were afraid to take it out.. But Beato, another member of the group, stole it and ran to a secluded corner to remove the scythe from its scabbard..

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