In the world of Mages there lives a family of Mages that became Lord's after the third generation they are the (L/N) family, one day after the 4th Holy grail war a Servent was summoned by the grail by accident and at some point met the last member of the (L/N) family after a devastating accident, her name was Rose (L/N) when she met the Servent she sent him back to London and on that day they fell in love and Eventually got married and had a child this child is (Y/N). H. (L/N), she became the youngest to graduate the clock tower and she became the head of the family, what adventures will wait the half Servent and what will happen when some of the mages falls for her.