Xina is its master's familiar. Because it was actually just a few years old familiar, the master didn't really expect it to be of much help.
Then, because the owner was going to do something dangerous, and something that looked like a fox kept having a sense of presence, Xina was thrown to the fox-like thing, with the euphemistic name "Please take care of her."
Unprepared, the ignorant cats were exploited as child labor by unscrupulous owners and unscrupulous organizations!
Special information 1: Sheena is a cat, but strictly speaking, she is still a kitten that is only one or two months old.
Special information 2: Xina's spiritual power can only make the short sword appear. It seems to be due to the loss of magic power converted into spiritual power.
Special information 3: Even so, it seems that there are other types of swords that can be named under this honmaru?
Special information 4: Cat is a familiar, so it can use a very powerful magic: the pain will fly away!