Y/N is an assassin within the Overwatch team. Once asked to join a mission to eliminate omnics hurting mankind, she changes. Her sudden abduction during the mission by a mysterious tall omnic, known as the leader of the entire war leads her on a rough blast to her past. Showing that they have more in common than she realizes. When he lashes out at his brother, however, he is forced to stay with Overwatch. Can those tormented by the past change their hearts and find a better future for all? Fem!Reader, smut is added.