Demon Saint: I Conned the Holy Maiden at the Start

Reborn as a succubus in a world where demons face extinction, Grin refuses to accept fate. Armed with forbidden divine arts that should be impossible for demons to wield, he embarks on a chaotic crusade to save his race. Human saints are left speechless: "How is a demon using our holy powers better than us?!" Fellow demons suspect treason: "Are you a human spy infiltrating our ranks?" Even demon elders must intervene: "Stop bullying your own kind with divine arts—they deal critical damage to demons!" In a world of rigid rules, Grin shatters every convention, leaving both sides questioning ever…