Assassin de Aru Ore no Sutetasu ga Yuusha Yori mo Akiraka ni Tsuyoi Nodaga

Oda Akira, a high school student who excels in erasing his presence, was summoned along with his classmates to another world.
In this world of sword and magic, Akira and his classmates were asked to become heroes and bring down the demon king.
Having a bad feeling about the king and the princess who requested this of them, Akira uses his special skill to sneak into the king’s library and discovers the truth.
Whether to help or abandon his classmates who knew nothing, it all depended on Akira.