How gain a lot of experience

When you reach the lvl 34, you can do the dungeon in Requies Beach.

You need 10000 NIL to enter, but you'll gain better there.

Easy monsters give 2000 xp, and some orange monsters give 4500 xp.
There is a bonus who gives 50000 xp.
In all, you gain 150000 xp for a dungeon...And you can do it again and again.
During the double xp, I won 100000 X 2 +50000 = 250000 xp each 10 minutes.

Anymore, if you fight the spider (Stiffen put a screenshot in the forum), you gain the ring of soul : +95 HP +60 MP +35 damage poison.

With this dungeon, you'll reach the lvl 45 in a short time, and you'll be able to do the interesting commission quests...