Abyss: Oops! the Devils Are All Theoretical!

After ten thousand years of bloody battle, the hymn of heaven resounded through the sky, and the endless abyss was retreating steadily. The seventy-two demon gods are born to embody the rules of world destruction. Their theories are flawless and their power shakes the rules. However, their thrones are being eroded step by step by the rigid and efficient angel army. They are addicted to the "aesthetics" of destruction. They debate scriptures before going to war and deduce which method of destruction is more artistic. As a result, they lose ground in the ten thousand-year holy war with heaven. When a soul from another world wakes up in the body of a cannon fodder demon, what he sees is not a myth, but a world dominated by "theorists" that is about to collapse. Poison, ambushes, alienation... All the means considered "vulgar" by the devil have become levers in his hands to leverage the situation of the war. Every spurned victory will extract the most solid "practical" power from the nihilistic "theory" of the demon gods. He carried out the most effective killing in the most humble status. He uses the dirtiest means to pursue the purest results. He will prove that victory has nothing to do with gestures and that truth is born of dust and blood. This is a road to rise paved with cunning and strategy. A heretic who is not understood will eventually gather an army that is only born for victory, push the war back to the door of heaven, and launch the ultimate question to the supreme "first mover": "Has your theory of creation... Ever used a real war to test its authenticity?"