I can safely say that not ALL of the quests are easily noticed. I almost missed the salve maker because I didn't walk up a set of stairs in chapter 3...and now I'm worried I may be missing ninja as well. Chapter 3 seems like its hell bent on throwing you off if you don't search adequately.
Quick heads up to everyone with money issues and merchants. The support ability "More Money" does not stack in any way. 4 merchants, 2 merchants and 2 others using the support ability...no way does it work. The description is bogus, and according to what I read, it DOES stack with items that boost money received. Granted I can't test it yet, but in case you're like me and trying to amass huge amounts of pg, leveling all of your party as merchants is a massive waste of time.
Continuing in updates, for you monk users, check back on your equipment frequently. You can quickly level up past the best claws available and not realize it, actually nerfing your attack power by not being bare handed. I lost about 20 attack using bastet claws when I realized it and saw a massive boost when I took them off. Friendly warning to anyone who is getting mad at monk, it really kicks ass.
Speaking of kicking ass, omg Ranger. First job I maxed out, and with the support ability precision, I'm landing 4k crits on enemies. It's ungodly. Forget it if it's flying, it roughs out to a 7k hit on crit. Amazing output.