Only those who defeat the Demon King become Heroes, gaining wealth and power――an era where only the strong are privileged. Ex, a dropout who cannot use attribute magic, aimed to become a "Hero who helps the weak," even while his efforts were mocked. With 【Non-Attribute Magic】 that no one pays attention to, and a fanatical thirst for heroism, his obsession finally leads him to step into the "Domain of the Demon King"――. With 【Magic Interference】 that allows him to manipulate unleashed magic at will, the rebellious Hero's tale that overturns the common sense of Heroes, begins!!