You were an experiment to Overhaul, and friends with the girl known as Eri. Though, you were much older than her, and always protected her from some experiments, which failed. One day, there was a break in the lab, and Aizawa rescued you and Eri. Once back at his home, he took a look at their injuries and tried to find what quirks you two had. Eri got used to him after a few weeks, but you had trouble trusting others. Currently 12am, Aizawa was at school and he took you and Eri there.