>>92387803>>92387890>>92388007so like, magicians in Fate suck ass, the more magicians there are, the less mysterious magic becomes and in result it becomes less and less able to do things that technology can not
to prevent that, Mage families gather their family's collection of magical research and pack it into a living tatoo/spellbook called a Crest and transplant it onto a single child
if you happen to have two talented at magic kids, usually one ends up shit out of luck, doesn't get a Crest and lives a mundane wagie life
the difference was that another family lived on Tohsaka's turf, one that had problems producing a heir since they were such fucking boyfailures even the town (female) rejected them
the second talented daughter was given up to them to pass on their Crest onto her instead (since Crest > genetics), except the boyfailure wizards turned their Crest into dickworms (since their magic was bug based)
cue loli rape