Some people knew, but no one at the Drumline Castle knew why gods had decided to fight. Before their war, gods met and created 'Almighty Interpreter' which became known as AI during the war. It was an abstract god of logistics, or simply, a system that was neutral and was supposed to enforce the rules of the war. It served as a referee.
From that moment, gods started picking soldiers from human world to create armies. Some gods would even give their soldiers droplets of their blood to travel to their realm and fight for them.
At first, it was only their followers. Only those who wanted to go and fight for their gods would receive a droplet of a god's blood to become strong. But then, not long after the war started, gods failed to contain it in their realm, affecting human world as a result.
