Oda Akira, a highschool student who’s special feature is to erase his presence, got summoned along with his cla.s.smates to another world. In this world of sword and magic, Akira and his cla.s.smates were asked to become heroes and bring down the demon king. Having a bad feeling about the king and the princess who asked them, Akira uses his special skills to sneak into the king’s library, in hopes of discovering the truth. Whether to help or abandon his cla.s.smates who knew nothing, all falls on Akira’s hands.