When you upgrade at level 7 in Hero, that head to the Highlands if you don't know where abouts that is look at your map that what it's there for once you're in the Highlands you're going to kill apes if you have the quest that's great, because it saves you time and you can get a little boost of exp or money which can help you in one way or the other.

While at level(hero gold) 8 and still grinding those apes keep it up and you get yet another piece of armour to add to your collection great huh. But at this level(Hero powerleveling) you should really be looking to get +1 +2 or even +3 equipment as this should help you a bunch.

Location: Ho-nam
Quest: Eliminate Black Wolf
Reward: [Experience] 4775

Description:
Meet [Castle Physician] at Dragon Castle and inquire about the Quest(hero online gold).
Bring the requested items to [Castle Physician] at Dragon Castle.
Requested Item: [Black Wolf's Canine Tooth] x 10.