Inko Midoriya a pro hero #8 lost her husband to a villain attack when she found out she was pregnant with izuku. during her grieving she had begun to get closer to toshinori yagi the number 1 hero allmight. after dating for a few months they decided to get married not only because they loved each other but so Izuku could have a father. Izuku yagi was an abnormal child. when he was born instead of green hair or even black like his biological father he was born with natural gray hair and red eyes. Now if it was only the hair or eyes which they could explain that with a pigment disorder but it wasn't only the hair and eyes. Izuku had been born with 1 mark that looks like a 3 symbol hunter mark form the golden age. the one on his right hand was shaped like a scorpion while the one on his Left was a weird circle like structure with a triangle in the middle. Thinking it could just be a weird birthmark of some kind inko and toshinori brushed it off. A year later Inko had gotten pregnant again and this time it was a girl. after Izumi was born Inko and Toshinori were happy to have their family and couldn't wait until they had their quirks so they could be heros like them. growing up Izumi and Izuku were inseparable and always promised to become heros together along with the bakugou twins and todoroki twins. What neither side new was that on the day of the quirk test was when their happy family would break apart