I have a Mihile I recently got up to 4th job, and I received the Empress's Grace quest. It tells me to go kill Rashes for peridots. So I do this for awhile, and don't see any. Looking up some information, it seems the quest has changed a few times over the years. Some people are saying I need ten, and some are saying I need five. The worrying thing is that I am also seeing that pretty much everyone is saying I want to take out Harps rather than Rashes. And also it takes forever for the peridots to drop.
So, who am I supposed to beat up for these things, and is the payoff worth the apparent hours this is going to take?