Too bad levelling characters is kind of the opposite of what you should be doing due to level scaling. Because I wanna keep levelling up my GFs!

Speaking of GFs - I know I can junction more than one to a character, but is there a limit as to how many? Or could one character theoretically have all the GFs junctioned to them? Also, are the abilities available to the GF dependent on level, abilities learned, or do you never get more at all?