Summoned alongside his classmates to a fantasy world of swords and sorcery, high school student Oda Akira discovers an unsettling truth behind the kingdom's request to unite against the demon king. While his peers accept their role as heroes without question, Akira's mastery of concealment allows him to uncover damaging secrets hidden within the royal library—revealing the deception of the throne. Now faced with a critical decision that will shape the fate of those around him, Akira must choose between exposing the conspiracy or protecting his unsuspecting allies.