The people who made contact with them can be anything. Demons, kitsune's, etc... Just have to have a good story as to how your character made contact with said guardian and how he/she made a contract to command said guardian.
But in terms of being rare, I'd say quite. Since not too many people still know magic in that world. But not like 1 in the 1 milion.
『Well, you said that there are 999 of them so about how many out of them are tamed by people? Or no one really knows? Since there are people who can repair them in cities I would expect that people at least know that they can be tamed and there should be at least some profit of having a shop that repairs guardians...』
『Oh, btw, I think you need to fix distance between cities too... From Hishimaki to Trixat its 800km, from Hishimaki to Listaval its 300km, but from Trixat to Listaval for some reason its 1210km... No matter how you place the cities that distance should be impossible...』
『Also, kinda forgot to comment before, but thats quite a large distance there xD』
『Anyway, got some time right now, might go make my char...』
『Hmmmm... Searching pics that will fit my basic idea of my character's story... Also thinking up what guardian to use... While listening to Beethoven's piano sonatas ^_^』
Sorry if interrupt, but do you upload comics? If yes, can you please upload this comic, author uploaded it on fanbox, but fanbox delete almost all posts, and kemono stop working in the same time, and almost 2 years i try to find it somewhere else, but useless, Thanks in advance, and sorry for bad english.