Izuku:Hybrid Dragonslayer(MHA X Highschool DXD)

Inko fushiguro gave birth to a boy she named izuku but due to the trauma of what she suffered she could not raise the child as her own she would leave the baby at an orphanage to take care of him. Izuku would grow up in the orphanage for about 6 years until it was attacked one day by a stray priest who would slaughter all the children and the caretaker of the orphanage and leave only izuku alive as the priest was not alone with him was the leader class fallen angel kokabiel.At the age of 6 Izuku was kidnapped by kokabiel and taken to a laboratory where he endured horrendous experiments done to him the pain he endured granted him powers of dragons but one day he went beserk and transformed into a dragon as he finally escaped the laboratory and flew off to where no one truly knows now older he now enters a world of devils fallen angels angels and other mythologies how will the green haired boy have an impact on these factions?