...this game isnt ALL grind, just mostly grinding . There are lots of quests you can do in-game to earn items, exp, and I think you might be able to earn some zeny from some too. Most people I know find the quests boring and just grind instead, only doing quests to get certain items.
Theres a whole series of quests called the 'Treasure Hunter Quests' in Yuno where you get points for completing a quests and you can use your points to purchase items from the Treasure Hunter Shop. It's quite fun, you should check it out. I think I saw a page on the Treasure Hunter quests over at Guiderz.com if your interested.
If you need anymore help, I would be glad to give you some more pointers.