Inko & Hisashi Midoriya had Four Kids as Two were Babies but they only could support Two of them and they made the hardest decision to leave Izuku & Izumi at an Orphanage hoping that they have a Good Life and they grow up in the Orphanage Together as Two Heroes enter the Orphanage Supergirl & Spider-Man who are Looking to adopt as the couple wants a Kid but Supergirl can't have Kids and They see Izuku and Izumi and after getting to know all the kids they adopt Izuku & Iuzmi who are thrilled to be adopted as they Grow up and become part of a Hero Team and they have a Mission to go to UA and Protect them where they'll meet their real family
Izuku is Spider-Man 2099
Izumi will have Powers like supergirl but a Bit weaker