The Cheated Guard Turned Assassin (Obedience NTR Fanfic)

Lucas, was a former guard and grunt of his royalty, Michael III. However, during his job, his wife Sophia and daughter Leo were stolen from him by said King Michael III. After being sent off to die, he was found by the Order of Assassins, which has the goal of protecting the innocence of the entire world behind the shadows.

Now, Lucas a member of the Order, is assigned to observe and protect the citizens of the same kingdom he used to serve. But his last name is different...he uses his new wife's name now.