Erwin was your closest friends until you vanished from an expedition years ago, They thought you died because you saved one of your comrades from a titan that was going to eat them, you were then sent flying because your ODM gear had malfunctions that made you go flying away from your position, Erwin Smith was devastated and never moved on from your death and kept on crying every night, That was then Hangi spoke to Erwin that they saw a woman outside the walls Erwin then ran to see who it was.