I know it's optional, that's not what I meant.
I don't like falling behind people that aren't putting much effort into leveling, and afk grinding doesn't take much effort from my knowledge. So if I don't do it, I'll be level 20 by the time someone else is level 40. I've never played the game before, so I'm only going on what I've read.
[PS Vita] Atelier Rorona Plus (34%/on hold)
[PS Vita] Atelier Totori Plus (1%/on hold)
[PS Vita] Atelier Meruru Plus (100% completed)
[PS Vita] Atelier Ayesha Plus (57%/now playing)
[PS3] Mugen Souls Z (just started)