Paracelsus no Musume

Atobe Ryoutarou is the next head of the Atobe family, an family of exorcists since ancient times, though for some reason the family members look down on him. Then his grandmother, the present head of the family, orders him to go to Britain, leaving his step-sister Kazune. He arrives at London and is immediately greeted with problems. All his baggages are stolen and Ryoutarou is at a loss when a white-winged monkey appears before him holding a letter of introduction from his grandmother. Ryoutarou chases the run-away monkey and a beautiful maid dressed girl with a silver hair and a golden curly-haired girl dressing in a man clothes awaits him... Source: jCafe