Lost Girls Part I: Wall Sina, Goodbye
What happened to Marco weighs heavily on Annie's mind, but for the sake of her mission, she must stain her hands with blood.
Tomorrow, the mission is infiltrate the 57th expedition outside the walls and to capture Erin Yeager.
Annie asks Hitch to cover for her tomorrow by saying that she is sick. To do so, Hitch gives Annie one of her assignments; to find a runaway. Thus, Annie sets out to find the lost girl in one of the worst neighborhoods of Stohess.