Your 'caretaker' was a Yoma, a monster pretending to be human that craved human flesh. It used you as its plaything, taking advantage of your young age to torment you for its own amusement. As a passerby, Teresa just happened to sense seven Yoma in the village you were in.

One by one, she flawlessly beheaded six, before counting and realising she only killed six, and then managed to kill you 'caretaker' from behind me.

"Fool. Did you really think you could use the child as a shield?"