Vigilante hero:Izumi.

Best jeanist and miruko(number 5 hero) in mha/bnha had a daughter but the hospital miruko was giving birth in was attacked by villains and izumi was lost in the chaos and villains tried to take her but stain saved her and took her to his own home and raised her.(Stain wasn't the hero killer yet and when he was raising izumi he just decided to work for the heroes and people hated him because of his villainous quirk but they soon learnt to accept him and he kept saving more and more people but he still cut someone and licked their blood but he didn't kill them,he would take them to prison when they were still paralyzed and he became the number 8 hero.(This is way before even the slime villain)His name was Blade hero:Stain.