I was summoned to an unfamiliar fantasy world, expecting the usual hero treatment—glory, legendary skills, and a grand quest to save humanity. Instead, I found out the terrifying truth behind my summoning. The absolute, supreme Goddess of this world didn't bring me here to defeat a Demon King; she summoned me purely to satisfy her own hidden, insatiable desires. Locked away in her divine, private sanctuary, completely hidden from the eyes of her mortal followers, I have become her ultimate, personal plaything. To survive in the clutches of a corrupt, overwhelmingly powerful deity, I have to endure her intense, explicit whims and find a way to turn the tables on the holy mother herself.