Chivalry (English translation from Wattpad)

Stories of choosing between followin heart or path may seem cliché to some. But for Silver Slayer, whose real name nobody knows, it's unfortunately a life: madly in love with the woman he is responsible for protecting since their earliest childhood, he cannot confess his feelings to her, because he would lose his job and never see her again. His life keeps going this way until the day his master announces a most surprising project to him: she too wishes to become a guard. Here is Slayer plunged into a new adventure: to help his master and train her to become a guard, they will have to brave all kinds of hardships together and, perhaps, face equally impressive opponents ...