Devil Slave (Satan system) - Chapter 999: Demeter’s Helplessness

"Locke transmigrated into an era where everyone had Battle Beasts. Daemons were rampant and humans were forced to build walls around their dwellings while depending on Beastmasters to keep those monsters at bay.

In the mystical land of Teyvat, where elemental forces collide and secrets of ancient gods remain buried, an ordinary traveler awakens to an extraordinary destiny. Armed with unparalleled ambition and a mysterious system, they embark on a quest to become the Supreme Arbiter—the ultimate authority over all creation.The world of Teyvat is no stranger to conflict, but its hidden truths are more treacherous than any battle. Beneath the veneer of harmony lies a struggle for dominance among divine beings, and the enigmatic Heavenly Principles rule from the shadows. Yet, this traveler defies fate itself, determined to shatter the chains of divine control and reshape the world.Guided by a unique power to harness and manipulate the essence of Teyvat’s elements, the protagonist builds alliances with heroes from every nation—Mondstadt’s free-spirited knights, Liyue’s calculative sages, and Inazuma’s thunderous warriors. However, their journey is far from peaceful. Ancient enemies, forbidden truths, and the ever-present gaze of Celestia test their resolve at every turn.As they ascend in power, unraveling secrets that defy the understanding of gods and mortals alike, one question looms: What does it mean to be the ultimate authority?Will they bring salvation to Teyvat, or become its greatest threat? The skies tremble, the earth stirs, and destiny itself bows before the rise of the Supreme Arbiter.

Rainer, an amateur arcanist and college student, sought to create a new spell far surpassing the magic of the few he inherited from his grandfather. Yet the interference of an unknown event during the casting of his spell led him to be thrown through space and time.

They took his name, stole his life, and fed on his pain. But they made one mistake—they let him live.Betrayed by his own blood and sold into slavery, Prince Oliver Von Rich lost everything—his title, his freedom, and his future. For years, his captors in the Somaran Empire bled him dry, using his Royal bloodline as fuel for their Aether.But when they sought King Solomon’s Staff—a relic said to grant any wish—Oliver rebelled. Left beaten and dying, his blood soaked the ancient artifact… and awakened it.Dragged back in time to the eve of his kingdom’s fall, Oliver is no longer a helpless prince. With the scars of his past and knowledge of what’s to come, he’ll rewrite fate—even if it means becoming a monster.To destroy the empire that broke him, Oliver must embrace the cursed power of the most vile demon known to man.