I was doing a quest at the Peka Glade and they said that I needed to find a friend of Esther's but I have no idea who that is. Help anyone?
here is a guide to the Greenhouse Quest. It's very spoilery.
http://subeta.wikia.com/wiki/Greenhouse_Quest
The trick to figuring this one out on your own is to realize you don't need any items, it's just going to the right place in the right order. The Subetapedia might have hints, but I think this next step was a surprise to me when I first saw it, I'd been playing for years and had no idea she had a friend.
Just a note, the quest wasn't available recently. You were able to start it, but only get a few steps before it just stopped. I filed a ticket awhile back, and was told that they might bring it back for Vesnali but it wasn't a sure thing, but it didn't come back this year (and I don't know how to even find the link anymore with the new Vesnali shop). So you might get stuck in the middle.