Inko would never admit it to Izuku, but meeting Yagi Toshinori as Izuku's mentor and teacher was not her first run in with the hero. In fact, before Izuku's father was in the picture, Inko used to date Yagi. The two ended up breaking up, but Inko can't help but remember her time with the pro-hero fondly and the secret she kept from him for so long.