This tag is to be used when the protagonist is involved in a master-servant relationship, whether that be a lord/lady and servant(e.g. maid/butler, knight, etc), owner and slave, or some other relationship in which one of the parties works for another of the parties with or without pay.
A maid who is beaten on behalf of a noble boy. Some memories of her childhood were cruel, but Yuriel held no resentment towards the boy. Rather, she liked it–The hand that carefully applied medicine to her wounds was always warm. “M-Master, stop, Raph, sa, save…ah, mm…!” “That’s why.. I told you.. to wait.. till I returned.” But the Raphlet that appeared in her dreams showed nothing but passion and lust. Prophetic dreams. The ability that was like a stigma drove Yuriel towards an unknown future. All I want is to be next to you.
Elena, who spent her entire life as a cold-blooded female knight to avenge her family, ended up dying without claiming her revenge. When she opened her eyes she found that she went back into the past. By day she was a lady in a dress, and at night she carried a sword to change history and prevent her family’s destruction. “I want to marry you, Your Highness,” she said to the crown prince. She would do this to save her family.