Erwin Smith - Nile and Erwin were good friends in their youth, both of whom attended the same Trainees Squad. They both fell in love with the same woman, Marie, and Nile eventually left the military to start a family with her. After the fall of Wall Maria, their relationship has been strained and Nile has forced himself to doubt Erwin and his intentions due to the reckless behavior of the Survey Corps, but the differences are eventually settled. Though not as close as they used to be, Nile and Erwin still talk occasionally. Later, Erwin reveals to Nile that he was in love with Marie, as well.