Red Hood Deku

This is a Izuku Yagi story, after being diagnosed quirkless at the age of 4 his mother had given all of her time and attention to his twin sister Izumi, while his father knowing what it's like to be quirkless decides to make Izuku his successor. Awesome right? no because along the way Toshinori stops seeing izuku as anything more than the key of defeating AFO and treats him like it, this with the torture he endures with his sister and her friends drives him over the edge and into the darkness.