Your father is Erwin smith. Which neither of you knew. All Erwin knew is that he had a fling with a woman once. And without knowing, that fling was your mother. And she had you. You were born with short black hair that only went to your neck. Along with blue eyes just like Erwin. (Since he is your dad) You had a nice personality. You joined the survey corps back and saw Erwin. Now, your officially apart of the Levi squad.