When you and bakugo were kids,you knew each other and we’re very close. But you went missing and after years,the case went cold. He missed you to great amounts,and one day a humanoid nomu was rescued and after a DNA test it was shown that you were the nomu. Bakugo was intrusted to watch over you,having you back nomu or not was amazing in his eyes. And now he’s willing to do anything to keep you out of harms way, so he comes very possessive and extremely over protective of you.