Eight centuries ago, humanity was pushed to the brink of extinction by terrifying demons. Salvation came in the form of the Idaten—warrior deities born with overwhelming, godlike powers. Led by the ancient and wise Rin, these deities waged a brutal war, sealing the demons away in the abyss. Following their victory, the Idaten chose isolation, retreating to a peaceful floating island to live in serene tranquility, completely detached from the mortal world below, knowing only peace.Fast forward eight hundred years, and a new generation of Idaten has emerged, led by the prodigy Hayato. Having never experienced war, these younger deities view their existence as a playful existence of training and sparring. However, deep in the mortal realm, the human empire of Zoble is secretly plotting. A ruthless military strategist named Pronnea resuscitated the sealed demons for military exploitation. Princess Carla, the deceptive ruler of Zoble, uses dark science and demonic flesh to create engineered horrors, intending to use the resurrected fiends as weapons of mass destruction to conquer the world.The uneasy peace shatters when scout demons breach the floating sanctuary. Hayato and his companion Isley confront the threat, discovering to their horror that the ancient enemy has returned. This revelation splits the Idaten camp. While the younger deities are eager for a thrilling fight, the pragmatic Rin understands the sheer gravity of the situation. She recognizes that humanity is no longer innocent; Zoble’s corrupt royalty actively collaborates with the demonic horde. Rin’s motivation shifts from mere self-defense to total eradication, setting up a brutal, uncompromising campaign against both the invading demons and the treacherous human empire that harbored them.As the conflict escalates, the narrative descends into a dark, morally complex chess match. The Idaten realize that their godlike power alone is not enough; they must master espionage, tactical ruthlessness, and
psychological warfare to survive. Zoble’s forces prove terrifyingly resourceful, deploying cunning traps, torture, and
biological warfare against the gods. Hayato undergoes a harsh coming-of-age transformation, shedding his naive idealism after witnessing unspeakable atrocities committed by the Zoble military. Meanwhile, internal political struggles plague the human empire, as ambitious military leaders like Gil begin to question Princess Carla’s mad fanaticism. The battle lines are redrawn in a world where gods, humans, and demons clash in a bloody struggle for supremacy, proving that the peaceful era is gone forever, replaced by an unforgiving war for the future of creation.