The manga is adapted from the light novel, not the web novel, like many other manga. And the author did say that the LN and the WN are parallel to each other.
While speculating about what Susie will get for a spirit is interesting, let me temper you guys' expectations a bit. It's already been mentioned that there are only five spirits and you use magic by borrowing their powers. Take that as you will.
Sadge. :meguuusad:
Well, your dedication to using the names from the LN translation is admirable, even though some of them are wrong (somewhat), but I really think you should've called them Luv Shrubs instead of Rub Shrubs. :huh: