Accidentally Summoned as the Eleventh Hero

Due to a failed rescue operation, Hiro and ten other children ended up in another world.



At first, he vowed to protect the ten children as atonement for the organization's failure. However, his goal changed when the children became 'Heroes' in the new world.



"So, I'm just an extra? Then I'll chill here."



And so, begins the journey of the accidentally summoned hero.



All along, Hiro thought that there was nothing to worry about.



But is that really the case?