"The Rebirth of the Invincible Maid System","King of Elements","Celestial Player's Expedition to the Other World","Maid War","Black Deacon","The Brutal Mage","About Me Raising a Blood Clan Maid","Starting the Life of a Lord from Choosing a Maid","My Maid is a Saintess","My Cold and Beautiful Maid Lady","Maid Summoning Space", and other novels all had plots where the male protagonist had a maid. Among them,"The Maid War" and "The Life of a Lord Begins from Choosing a Maid" had this as their theme. I hope you like this fairy's recommendation. Muah ~😗