1Blaze Breath Of A Hero Ren struggles with the burden of being quirkless, losing his father to a villain attack, and almost his mother, and being left alone with his baby sister while still striving to become a hero, in a world that looks down on you for being born without a quirk. This story is of my OC Ren, within a what-if MHA and Demonslayer worlds were the same. (Original from "breath of a hero")