In the ancient realm of Disboard, Riku is a fierce young fighter determined to rescue humanity from the warring Exceed—sixteen sentient races vying to proclaim a single True God among the Old Deus. In this lawless world, humans lack magic and possess frail bodies, making them easy prey for the other Exceed and pushing humanity to the edge of annihilation. Yet hope resurfaces when Riku discovers a formidable female Ex-Machina, whom he names Schwi, hidden within an abandoned elf citadel. Banished from her Cluster for probing human emotions, Schwi believes humanity endures only because of those feelings and seeks to comprehend the human heart. Amidst overwhelming turmoil, Riku and Schwi forge an unlikely alliance; they must confront their own deficiencies in one another and uncover what it truly means to be human while fighting for survival against all odds. Armed with a powerful new companion, they now face the task of stopping humanity"s extinction and bringing lasting peace across Disboard. Their combined strength and shared resolve become the last beacon of hope for those who cling to survival. Together they must navigate treacherous alliances, betrayals, and the looming threat of the Old Deus' wrath.