Personal Preferences and different play styles - Just going with another advice of another person who said to new players of FKG: "Don't rush, just enjoy yourself"
I did that since Julyu 2016. I'm happy with being lvl 100 or so at this point. I didn't finish the July events, but I manage to finish all other events from August. This game doesn't have huge difficulty spike like Aigis. There is no need to grind for Exp and other stuff from the start.