Hiiro Okamura's passion for books is unparalleled, making him a self-sufficient individual. His journey starts like any other classic hero summoning tale. However, Hiiro was unintentionally included in the call of five individuals, including his classmates, who he doesn't consider his friends despite attending the same school. Unlike the others, Hiiro leads a life of his own, choosing not to aid their nation due to his disbelief and lack of friendship with them. Hiiro decides to embark on his own adventure, protecting his well-being. Little did the others know that Hiiro, a seemingly ordinary person, holds the strength to change the world's fate!