I don't know if I can double post, but this is an update anyway...
I found two of the volume 4 series when I stopped in a store called animate. Couldn't find them on my own, so I had to ask. Luckily I screenshot red what you said Rey, so they were able to make out what I wanted.
Anyway, I got Severa and Kjelle. I wanted Marth, but oh well. Here's to hoping I find more! Thanks again so much Rey for the advice!