“Heroes” keep the world’s peace in check….There were twins who admired their overwhelming powers, and they vowed that they’ll become “heroes”. However, a few years later, the younger brother, Hiiro, couldn’t make his dream come true, and ended up working as a cleaner for the heroes. Hiiro tells himself, “A rank is assigned to you, the moment you’re born”, as he watches his brother, whose dream became true from afar. But when he saw the despair of his childhood friend, Iruka, he was prepared to go against fate with his first and last resolve!!