Remnant/Marchen Kismet

A unique Mage from a family of Mages held no skill to use Magecraft, he spent his time reading books and trying to make any spell come into effect but each attempt ended in a failure, even with the knowledge to activate his Magic Circuits and the really decent amount of them nothing came to make him proud

It wasn't until he tried a special spell in a book where he somehow managed to summon a mysterious girl that claimed to be a Servant, even when there was no Holy Grail War going on nor any circle to summon her. Thanks to that he knew the special nature of his Magic Circuits, it was related to summoning Servants rather than using any kind of spell, thing that he discovered after being adopted by a mysterious woman who gave him a better life than his previous one

He was signed in as a Master Candidate in Chaldea where he'd start his new life with his Servant after growing up, however as they prepared for the future quests something happened within Chaldea's installations that made his life change completely

I own neither RWBY nor Fate...nor the images in the content, all credit goes to their original authors