First Ones

Anyone else bothering to max out the first ones both in class and level?

ex: Zephys attains S+ around lvl 60 but i have him lvl 99

Class [and] level? Well, all of mine are S+ because they’re quite useful. 

the level increases the more you use them. I have all of them level 99 you have to summon them and then select them to see the level. some stay at s+ even though they keep leveling.

oddly you get some at lvl 99 and they dont seem to improve that i have seen