Special thanks to King_Kado131 for he came up with the last name and because when talking to him I realized how similar Dragonic knight and Mordred's armor look and jokingly said to him "what if Mordred was Saber?"
Anyway story idea time!Mordred Deo Bestia the Reincarnation of the treacherous Knight and part-time worker at a bookstore in a place she barely understands enough of the language to hold a conversation
Soon enough one day her boss was running late to their work so she starts to get ready to go out when suddenly an armored figure burst through the door with a sword hole through his stomach
This was Kamen Rider Saber and her boss before he would pass he said something in Japanese that she did not understand before his armor disappeared in flames and his body started to turn into little particles
"Hey Blondie I got something to ask you"
Suddenly hearing a new voice she quickly turned around to be met with a red-headed figure with glowing Crimson eyes
"Are you my new partner?"
This was Y/n L/n Rekka
A Seiken sword spiritThis was A New Beginning To The both of them
The end of one book and the beginning of another
Now for an explanation of some things
A: primitive dragon is the embodiment of Mordred Pendragon's darkest memories and Elemental Dragon is giving her the ending she always wanted
B: Kamen Rider caliber is also a spirit wielding himself he is also the altar to Y/n having left his own timeline via... not so clean methods as he put it
C: Y/n along with all the other Spirits can fight by themselves although fight better if they have a partner so usually they will search for one
D: Mordred can use Clarent and gains access to the sword permanently after obtaining Dragonic knight